CN114337885A - Ground digital television emergency broadcasting method, equipment and medium - Google Patents
Ground digital television emergency broadcasting method, equipment and medium Download PDFInfo
- Publication number
- CN114337885A CN114337885A CN202111542257.6A CN202111542257A CN114337885A CN 114337885 A CN114337885 A CN 114337885A CN 202111542257 A CN202111542257 A CN 202111542257A CN 114337885 A CN114337885 A CN 114337885A
- Authority
- CN
- China
- Prior art keywords
- data
- emergency broadcast
- file
- digital television
- emergency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a method, a device and a medium for emergency broadcasting of a ground digital television in the technical field of emergency broadcasting, wherein the method comprises the following steps: step S10, after the adapter of the ground digital television station is started, the adapter is connected with a superior platform and an inferior platform; step S20, the ground digital television station adapter monitors a TAR emergency broadcast data packet of a superior platform and an IP emergency broadcast data packet of a subordinate platform, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue; step S30, the ground digital television station adapter analyzes and verifies the TAR emergency broadcast data packet and the IP emergency broadcast data packet based on the sequence of the message storage queue, and converts the TAR emergency broadcast data packet and the IP emergency broadcast data packet into TS data; and step S40, the ground digital television station adapter sends the TS data to the ground digital television for emergency broadcasting. The invention has the advantages that: the compatibility of the terrestrial digital television emergency broadcasting is greatly improved.
Description
Technical Field
The invention relates to the technical field of emergency broadcasting, in particular to a method, equipment and medium for emergency broadcasting of a ground digital television.
Background
In the emergency broadcast transmission coverage network, a terrestrial digital television transmission coverage network (DTMB) is an important transmission coverage network, the occupancy rate in the original broadcast television transmission coverage network is higher, the terrestrial digital television transmission coverage network performs transmission through wireless terrestrial waves, and is favorable for being compatible with an old terrestrial digital television set top box to receive emergency broadcast programs, and an outdoor emergency broadcast loud speaker can also receive emergency broadcast messages to wake up and play the emergency broadcast programs.
The ground digital television station adapter is used together with the front end of a mountain station and a ground digital television transmission coverage network, in order to utilize the original television front-end equipment, the ground digital television station adapter provides multiple modes such as IP/TS output and ASI output, but does not have the functions of program multiplexing and modulation, so as to avoid the redundancy of the functions and the waste of investment caused by equipment integration, in addition, the IP/TS output can ensure that the equipment for program multiplexing and modulation of the ground digital television station adapter is not limited by the distance, and the remote communication can be realized through a special network.
Since the terrestrial digital tv transmission overlay network is one of important transmission overlay networks in the emergency broadcast transmission overlay network, it is necessary to access a new emergency broadcast signal generating source to the original terrestrial digital tv transmission overlay network, but the following problems need to be solved in the access process: 1. the method comprises the steps that new emergency broadcast messages are converted into reusable terrestrial digital television broadcast streams by using the front-end equipment of the original transmission overlay network so as to be multiplexed into the original television program channels; 2. the county-level emergency broadcast platform and other platforms need to be adapted to be accessed simultaneously and converted into emergency broadcast messages; 3. the normal transmission of the original terrestrial digital television signal is reserved.
Therefore, how to provide a method, a device and a medium for terrestrial digital television emergency broadcasting to improve the compatibility of terrestrial digital television emergency broadcasting becomes a technical problem to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, a device and a medium for terrestrial digital television emergency broadcasting, so as to improve the compatibility of terrestrial digital television emergency broadcasting.
In a first aspect, the present invention provides a terrestrial digital television emergency broadcasting method, including the following steps:
step S10, after the adapter of the ground digital television station is started, the adapter is connected with a superior platform and an inferior platform;
step S20, the ground digital television station adapter monitors a TAR emergency broadcast data packet of a superior platform and an IP emergency broadcast data packet of a subordinate platform, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue;
step S30, the ground digital television station adapter analyzes and verifies the TAR emergency broadcast data packet and the IP emergency broadcast data packet based on the sequence of the message storage queue, and converts the TAR emergency broadcast data packet and the IP emergency broadcast data packet into TS data;
and step S40, the ground digital television station adapter sends the TS data to the ground digital television for emergency broadcasting.
Further, the step S10 is specifically:
after the adapter of the ground digital television station is started, the adapter is automatically connected with a network, sends heartbeat requests to the upper platform and the lower platform, and establishes heartbeat connection with the upper platform and the lower platform after receiving feedback data packets of the upper platform and the lower platform.
Further, the step S20 is specifically:
the ground digital television station adapter monitors a TAR emergency broadcast data packet of an upper platform through a preset first address and a first port, monitors an IP emergency broadcast data packet of a lower platform through a preset second address and a second port, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue based on monitoring time or priority.
Further, in step S20, the TAR emergency broadcast data packet carries an XML emergency broadcast message file, an XML signature data file, and a media information file;
the XML emergency broadcast message file at least comprises a heartbeat file, an instruction file, operation and maintenance data, a local state and a log; the heartbeat file is provided with heartbeat generation time used for calibrating time; the instruction file carries a covering resource code and an emergency broadcast message code;
the XML signature data file at least comprises a protocol version number, associated emergency broadcast service data, an associated emergency broadcast service data ID, a certificate number, a signature algorithm and signature data;
the media information file is a text file, a picture file, an audio file or a video file.
Further, in the step S20, the IP emergency broadcast data packet carries a packet header and a packet body;
the packet header at least comprises a packet body mark, a packet body version number, a session identifier, a signature identifier, signature data, a data packet type and a data packet length; the data packet type is a request data packet or a response data packet;
the bag body at least comprises emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data; the broadcast type is broadcast starting, broadcast stopping, terminal state inquiry, terminal parameter setting or emergency broadcast certificate authorization protocol; the service data is a text file, a picture file, an audio file or a video file.
Further, in step S30, the analyzing and verifying the TAR emergency broadcast data packet, and converting into TS data specifically includes:
analyzing the TAR emergency broadcast data packet to obtain an XML emergency broadcast message file, an XML signature data file and a media information file;
verifying the signature of the media information file by using the signature data carried in the XML signature data file;
matching equipment information based on the covering resource codes carried by the XML emergency broadcast message file;
converting the instruction file carried by the XML emergency broadcast message file into instruction TS data by using a preset emergency broadcast index table, decomposing the media information file into media TS data through ffmpeg, and combining the instruction TS data and the media TS data to obtain the TS data.
Further, the device information at least includes a channel name, a channel frequency, a program number, a channel number, and a device idle state.
Further, in step S30, the analyzing and verifying the IP emergency broadcast data packet, and converting into TS data specifically includes:
analyzing the IP emergency broadcast data packet to obtain a packet header and a packet body;
the signature data carried by the packet header is used for carrying out signature verification on the bag body;
analyzing the bag body, and converting emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data carried by the bag body into TS data based on a TS protocol.
In a second aspect, the present invention provides a terrestrial digital television emergency broadcasting device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of the first aspect when executing the program.
In a third aspect, the present invention provides a terrestrial digital television emergency broadcast medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
after the adapter of the ground digital television station is started, the heartbeat connection is established with the upper platform and the lower platform, and monitors TAR emergency broadcast data packets of an upper platform and IP emergency broadcast data packets of a lower platform through a preset address and port, stores the TAR emergency broadcast data packets and the IP emergency broadcast data packets to a message storage queue based on monitoring time or priority, the TAR emergency broadcast data packet and the IP emergency broadcast data packet of the message storage queue are verified and analyzed and then converted into TS data, the TS data are sent to the ground digital television for emergency broadcast, namely, the emergency broadcast data packets of the upper platform and the lower platform with different standard protocols are processed simultaneously, and the TS data obtained by processing is subjected to emergency broadcasting by using original equipment (ground digital television), so that the compatibility of the ground digital television emergency broadcasting is greatly improved finally.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a flow chart of an emergency broadcasting method of terrestrial digital television according to the present invention.
Fig. 2 is a schematic structural diagram of a terrestrial digital television emergency broadcasting device according to the present invention.
Fig. 3 is a schematic structural diagram of a terrestrial digital television emergency broadcasting medium according to the present invention.
Detailed Description
The embodiment of the application provides a method, equipment and medium for emergency broadcasting of a terrestrial digital television, so that the compatibility of the terrestrial digital television emergency broadcasting is improved.
The technical scheme in the embodiment of the application has the following general idea: the method comprises the steps of monitoring a TAR emergency broadcast data packet of a superior platform and an IP emergency broadcast data packet of a subordinate platform through a preset address and a preset port by a ground digital television station, checking and analyzing the TAR emergency broadcast data packet and the IP emergency broadcast data packet, converting the TAR emergency broadcast data packet and the IP emergency broadcast data packet into TS data, and sending the TS data to the ground digital television for emergency broadcasting, namely, processing and broadcasting the emergency broadcast data packets of the superior platform and the subordinate platform with different standard protocols simultaneously, so as to improve the compatibility of the ground digital television emergency broadcasting.
Example one
The embodiment provides a terrestrial digital television emergency broadcasting method, as shown in fig. 1, which includes the following steps:
step S10, after the adapter of the ground digital television station is started, the adapter is connected with a superior platform and an inferior platform;
step S20, the ground digital television station adapter monitors a TAR emergency broadcast data packet of a superior platform and an IP emergency broadcast data packet of a subordinate platform, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue;
step S30, the ground digital television station adapter analyzes and verifies the TAR emergency broadcast data packet and the IP emergency broadcast data packet based on the sequence of the message storage queue, and converts the TAR emergency broadcast data packet and the IP emergency broadcast data packet into TS data;
and step S40, the ground digital television station adapter sends the TS data to the ground digital television for emergency broadcasting. And dynamically generating program list information for emergency broadcasting by the ground digital television based on the received TS data.
The method and the system have the advantages that on the TS specification of the ground digital television, the message processing flow of the ground digital television station adapter and the message processing flow of the platform (the upper platform and the lower platform) are determined, the TAR packet processing and conversion and the IP specification protocol conversion and processing modes are included, the upper platform and the lower platform are simultaneously accessed according to actual conditions, the function of the emergency broadcast ground digital television station adapter is really realized, the coordination processing of the ground digital television station adapter through the TS instruction message packaging mode is determined, the message access of a plurality of platforms can be synchronously processed, and controllable and manageable priority is achieved.
The step S10 specifically includes:
after the ground digital television station adapter is started, the network is automatically connected, heartbeat requests are sent to an upper platform (a provincial platform/a city platform, which is a server) and a lower platform (a county platform, which is a server), and after feedback data packets of the upper platform and the lower platform are received, heartbeat connection is established between the upper platform and the lower platform, so that the ground digital television station adapter is on line.
The heartbeat connection is bidirectional, and the terrestrial digital television station adapter sends heartbeat requests to the upper platform and the lower platform at intervals to maintain the heartbeat connection.
The step S20 specifically includes:
the ground digital television station adapter monitors a TAR emergency broadcast data packet of an upper platform through a preset first address and a first port, monitors an IP emergency broadcast data packet of a lower platform through a preset second address and a second port, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue based on monitoring time or priority. The purpose of storing the TAR emergency broadcast data packet and the IP emergency broadcast data packet into the message storage queue is to better compatible the emergency broadcast data packets of the upper platform and the lower platform and to perform simultaneous processing.
TAR (tape archive) is a file filing format, the compression rate is high, the cross-platform compatibility is good, the compressed description file in the TAR emergency broadcast data packet is stored by using an XML file, and the XML file can flexibly store broadcast data and a structure of the broadcast data; broadcast media files including text, audio, video, etc. may all be packaged by the TAR.
In step S20, the TAR emergency broadcast data packet carries an XML emergency broadcast message file, an XML signature data file, and a media information file;
the XML emergency broadcast message file at least comprises a heartbeat file, an instruction file, operation and maintenance data, a local state and a log; the heartbeat file is provided with heartbeat generation time used for calibrating time; the instruction file carries a covering resource code and an emergency broadcast message code; the coverage resource code is a target resource code to which an emergency broadcast program resource file needs to be broadcasted;
the XML signature data file at least comprises a protocol version number, associated emergency broadcast service data, an associated emergency broadcast service data ID, a certificate number, a signature algorithm and signature data;
the media information file is a text file, a picture file, an audio file or a video file.
In step S20, the IP emergency broadcast data packet carries a packet header and a packet body;
the packet header at least comprises a packet body mark, a packet body version number, a session identifier, a signature identifier, signature data, a data packet type and a data packet length; the data packet type is a request data packet or a response data packet; the value of the inclusion marker is fixed to 0 xFEFD; the value of the inclusion version number is 0x 0100; the session identification is a uniform number of a data packet requested by an initiator at a transmitting end, the number is increased in a one-way mode, and the request and the responded session identification are kept consistent; the signature identification is used for identifying whether the bag body has a signature or not; the data packet length is used for identifying the length of the whole IP emergency broadcast data packet;
the bag body at least comprises emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data; the broadcast type is broadcast starting, broadcast stopping, terminal state inquiry, terminal parameter setting or emergency broadcast certificate authorization protocol; the service data is a text file, a picture file, an audio file or a video file.
In step S30, the analyzing and verifying the TAR emergency broadcast packet, and converting into TS data specifically includes:
analyzing the TAR emergency broadcast data packet to obtain an XML emergency broadcast message file, an XML signature data file and a media information file;
verifying the signature of the media information file by using the signature data carried in the XML signature data file;
matching equipment information based on the covering resource codes carried by the XML emergency broadcast message file;
converting the instruction file carried by the XML emergency broadcast message file into instruction TS data by using a preset emergency broadcast index table, decomposing the media information file into media TS data through ffmpeg, and combining the instruction TS data and the media TS data to obtain the TS data.
The equipment information at least comprises a channel name, a channel frequency, a program number, a channel number and an equipment idle state, and is pre-recorded in the adapter of the ground digital television station.
The most important of the command file is the overlay resource code, and the terrestrial digital television station adapter needs to convert the overlay resource code into the overlay resource code in the TS command and send the overlay resource code to the multiplexer. The PID of the TS instruction is fixed 0x21, the emergency broadcast index table is an instruction table, and the method for converting the instruction file into the TS instruction comprises the following steps: the broadcast type is fixed as emergency broadcast, the level is the highest, the source level forwards the level of the platform to the TS instruction, the emergency broadcast message code is directly obtained from the instruction of the superior platform, the quantity of the emergency broadcast message code is the quantity carried in the superior platform instruction, and the escaping method is to escape the ASCII resource code in the XML node into the byte code in the TS instruction; and adding the appointed program number and channel number as parameters into the program information inquired by the upper platform for the program information in the emergency broadcast index table, and filling the program information such as service _ id, network _ id, transport _ stream _ id and the like and audio and video related PID information according to the generated information of the program number.
In specific implementation, the instruction type of the instruction file may be broadcast message status, operation and maintenance data, station information, adapter device information, transmission coverage broadcast device information, and broadcast record, and the specific processing flow is as follows:
receiving a TAR packet, decompressing the TAR packet, checking the TAR packet, packaging a feedback data packet, signing and feeding the feedback data packet;
in step S30, the analyzing and verifying the IP emergency broadcast data packet, and converting into TS data specifically includes:
analyzing the IP emergency broadcast data packet to obtain a packet header and a packet body;
the packet body is checked by using the signature data carried by the packet header, and the result of checking the tag is fed back to a lower platform; the safety of emergency broadcasting is greatly improved by checking the tags;
analyzing the bag body, and converting emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data carried by the bag body into TS data based on a TS protocol.
The conversion correspondence table is as follows:
when receiving the command of stopping broadcasting, analyzing and storing the related parameters, and converting the corresponding table as follows:
| IP emergency broadcast data packet (IP protocol) | TS data (TS protocol) |
| Emergency broadcast message encoding | Emergency broadcast message identifier |
Because the instruction encapsulation and transmission modes of the IP protocol and the TS protocol are different, the IP protocol is one-time TCP handshake communication, and the TS protocol is circularly transmitted, the encapsulation mode needs to be changed when the IP emergency broadcast data packet is converted into the TS data, when the broadcasting IP emergency broadcast data packet is received, a circularly transmitted instruction is newly added in the TS data, and when the broadcasting IP emergency broadcast data packet is received, the corresponding emergency broadcast message code is searched and deleted in the TS data.
The query and setting instructions of the IP protocol also need to be converted, and the missing of receiving under the condition of error codes of the ground digital television is avoided by adding one query and setting instruction in the TS data and circulating for a certain number of times; after receiving the query instruction of the TS data, the terrestrial digital television needs to notify the upper platform or the lower platform through the backhaul network that the execution result of the query and setting instruction has been received, so as to avoid sending the instruction again.
Based on the same inventive concept, the application provides an electronic device embodiment corresponding to the first embodiment, which is detailed in the second embodiment.
Example two
The embodiment provides a terrestrial digital television emergency broadcasting device, as shown in fig. 2, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, any one of the embodiments may be implemented.
Since the electronic device described in this embodiment is a device used for implementing the method in the first embodiment of the present application, based on the method described in the first embodiment of the present application, a specific implementation of the electronic device in this embodiment and various variations thereof can be understood by those skilled in the art, and therefore, how to implement the method in the first embodiment of the present application by the electronic device is not described in detail herein. The equipment used by those skilled in the art to implement the methods in the embodiments of the present application is within the scope of the present application.
Based on the same inventive concept, the application provides a storage medium corresponding to the third embodiment.
EXAMPLE III
The embodiment provides a terrestrial digital television emergency broadcasting medium, as shown in fig. 3, on which a computer program is stored, and when the computer program is executed by a processor, any one of the embodiments can be implemented.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
after the adapter of the ground digital television station is started, the heartbeat connection is established with the upper platform and the lower platform, and monitors TAR emergency broadcast data packets of an upper platform and IP emergency broadcast data packets of a lower platform through a preset address and port, stores the TAR emergency broadcast data packets and the IP emergency broadcast data packets to a message storage queue based on monitoring time or priority, the TAR emergency broadcast data packet and the IP emergency broadcast data packet of the message storage queue are verified and analyzed and then converted into TS data, the TS data are sent to the ground digital television for emergency broadcast, namely, the emergency broadcast data packets of the upper platform and the lower platform with different standard protocols are processed simultaneously, and the TS data obtained by processing is subjected to emergency broadcasting by using original equipment (ground digital television), so that the compatibility of the ground digital television emergency broadcasting is greatly improved finally.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. A ground digital television emergency broadcasting method is characterized in that: the method comprises the following steps:
step S10, after the adapter of the ground digital television station is started, the adapter is connected with a superior platform and an inferior platform;
step S20, the ground digital television station adapter monitors a TAR emergency broadcast data packet of a superior platform and an IP emergency broadcast data packet of a subordinate platform, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue;
step S30, the ground digital television station adapter analyzes and verifies the TAR emergency broadcast data packet and the IP emergency broadcast data packet based on the sequence of the message storage queue, and converts the TAR emergency broadcast data packet and the IP emergency broadcast data packet into TS data;
and step S40, the ground digital television station adapter sends the TS data to the ground digital television for emergency broadcasting.
2. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: the step S10 specifically includes:
after the adapter of the ground digital television station is started, the adapter is automatically connected with a network, sends heartbeat requests to the upper platform and the lower platform, and establishes heartbeat connection with the upper platform and the lower platform after receiving feedback data packets of the upper platform and the lower platform.
3. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: the step S20 specifically includes:
the ground digital television station adapter monitors a TAR emergency broadcast data packet of an upper platform through a preset first address and a first port, monitors an IP emergency broadcast data packet of a lower platform through a preset second address and a second port, and stores the TAR emergency broadcast data packet and the IP emergency broadcast data packet to a message storage queue based on monitoring time or priority.
4. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: in step S20, the TAR emergency broadcast data packet carries an XML emergency broadcast message file, an XML signature data file, and a media information file;
the XML emergency broadcast message file at least comprises a heartbeat file, an instruction file, operation and maintenance data, a local state and a log; the heartbeat file is provided with heartbeat generation time used for calibrating time; the instruction file carries a covering resource code and an emergency broadcast message code;
the XML signature data file at least comprises a protocol version number, associated emergency broadcast service data, an associated emergency broadcast service data ID, a certificate number, a signature algorithm and signature data;
the media information file is a text file, a picture file, an audio file or a video file.
5. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: in step S20, the IP emergency broadcast data packet carries a packet header and a packet body;
the packet header at least comprises a packet body mark, a packet body version number, a session identifier, a signature identifier, signature data, a data packet type and a data packet length; the data packet type is a request data packet or a response data packet;
the bag body at least comprises emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data; the broadcast type is broadcast starting, broadcast stopping, terminal state inquiry, terminal parameter setting or emergency broadcast certificate authorization protocol; the service data is a text file, a picture file, an audio file or a video file.
6. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: in step S30, the analyzing and verifying the TAR emergency broadcast packet, and converting into TS data specifically includes:
analyzing the TAR emergency broadcast data packet to obtain an XML emergency broadcast message file, an XML signature data file and a media information file;
verifying the signature of the media information file by using the signature data carried in the XML signature data file;
matching equipment information based on the covering resource codes carried by the XML emergency broadcast message file;
converting the instruction file carried by the XML emergency broadcast message file into instruction TS data by using a preset emergency broadcast index table, decomposing the media information file into media TS data through ffmpeg, and combining the instruction TS data and the media TS data to obtain the TS data.
7. The emergency broadcasting method of terrestrial digital television according to claim 6, wherein: the device information includes at least a channel name, a channel frequency, a program number, a channel number, and a device idle state.
8. The emergency broadcasting method of terrestrial digital television according to claim 1, wherein: in step S30, the analyzing and verifying the IP emergency broadcast data packet, and converting into TS data specifically includes:
analyzing the I P emergency broadcast data packet to obtain a packet header and a packet body;
the signature data carried by the packet header is used for carrying out signature verification on the bag body;
analyzing the bag body, and converting emergency broadcast message codes, data source object codes, data target object quantity, data target object codes, broadcast types, event levels, event types, volume, starting time, ending time, service data length and service data carried by the bag body into TS data based on a TS protocol.
9. A terrestrial digital television emergency broadcasting device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the method of any one of claims 1 to 8.
10. A terrestrial digital television emergency broadcast medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111542257.6A CN114337885A (en) | 2021-12-16 | 2021-12-16 | Ground digital television emergency broadcasting method, equipment and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111542257.6A CN114337885A (en) | 2021-12-16 | 2021-12-16 | Ground digital television emergency broadcasting method, equipment and medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114337885A true CN114337885A (en) | 2022-04-12 |
Family
ID=81053219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111542257.6A Pending CN114337885A (en) | 2021-12-16 | 2021-12-16 | Ground digital television emergency broadcasting method, equipment and medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114337885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116488757A (en) * | 2023-05-12 | 2023-07-25 | 北京悦视科技有限公司 | Urban emergency broadcast media adaptation method and system |
-
2021
- 2021-12-16 CN CN202111542257.6A patent/CN114337885A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116488757A (en) * | 2023-05-12 | 2023-07-25 | 北京悦视科技有限公司 | Urban emergency broadcast media adaptation method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10123079B2 (en) | Method and apparatus for transmitting/receiving broadcast signal in hybrid broadcasting system | |
| JP6610553B2 (en) | Receiving device, receiving method, transmitting device, and transmitting method | |
| EP3116218B1 (en) | Software upgrade method, device and equipment | |
| US10749919B2 (en) | Reception device, reception method, transmission device, and transmission method for distributing signaling information | |
| US10136192B2 (en) | Device, system and method to provision, configure and operate video generation equipment | |
| US20160330490A1 (en) | Reception apparatus, reception method, transmission apparatus, and transmission method | |
| US20190191190A1 (en) | Reception apparatus, reception method, transmission apparatus, and transmission method | |
| US11956159B2 (en) | Transmission device, transmission method, reception device, and reception method | |
| US10616124B2 (en) | Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal | |
| US20170195223A1 (en) | Transmitting apparatus, transmitting method, and receiving apparatus | |
| US11133950B2 (en) | Reception apparatus, reception method, transmission apparatus, and transmission method | |
| CN114337885A (en) | Ground digital television emergency broadcasting method, equipment and medium | |
| CN103747039A (en) | Digital film copy distribution system | |
| KR20170000312A (en) | Method and apparatus for digital broadcast services | |
| CN112350792B (en) | Emergency broadcast data forwarding multiplexing method | |
| KR20170012225A (en) | Reception apparatus, reception method, transmission apparatus, and transmission method | |
| CN114095108B (en) | Intelligent broadcasting method applied to client | |
| EP3328019B1 (en) | Broadcasting signal transmitting apparatus, broadcasting signal receiving apparatus, broadcasting signal transmitting method, and broadcasting signal receiving method | |
| CN114205041A (en) | Multimode emergency broadcast adapter comprising FM-CDR | |
| KR102451242B1 (en) | Method and apparatus for providing broadcast service | |
| JP2020074589A (en) | Transmission method | |
| CN105049415B (en) | A kind of method and system by satellite remote transmission data | |
| US20200053406A1 (en) | Information processing apparatus and information processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |