CN114189303A - Multimode receiving-FM-CDR-converted emergency broadcast adapter - Google Patents
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- CN114189303A CN114189303A CN202111560038.0A CN202111560038A CN114189303A CN 114189303 A CN114189303 A CN 114189303A CN 202111560038 A CN202111560038 A CN 202111560038A CN 114189303 A CN114189303 A CN 114189303A
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- H—ELECTRICITY
- 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
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Abstract
The invention relates to an emergency broadcast adapter for converting multimode reception into FM-CDR, which comprises an FM-RDS receiving module, an FM program audio acquisition module, a DVB-C receiving module, a DTMB receiving module, a DVB-S receiving module, a digital medium wave receiving module, an IP network module, a main control module, a safety module, a storage module, an FM-CDR packaging module and an output module, wherein the main control module is connected with other modules. The invention realizes the multi-mode reception to FM-CDR emergency broadcast adapter, supports FM-RDS, DVB-C, DTMB, DVB-S, digital medium wave and the emergency broadcast message of IP network, then transmits to the digital FM-CDR transmission and emission system, and can still receive the emergency broadcast message through other receiving channels and transmit to the FM-CDR transmission coverage network under the condition that part of the receiving channel signals are interrupted, thereby improving the channel disaster resistance of the adapter.
Description
Technical Field
The invention belongs to the technical field of emergency broadcasting, and particularly relates to an emergency broadcasting adapter for converting multimode receiving into FM-CDR.
Background
The emergency broadcast system consists of an emergency broadcast platform, an adapter, a transmission coverage system and an emergency broadcast terminal, wherein the emergency broadcast platform transmits emergency broadcast messages to the emergency broadcast terminal for playing through the adapter and the transmission coverage system. The emergency broadcast message includes an emergency broadcast instruction and emergency broadcast content. Emergency broadcast content is message incidental content (text, audio-video) or parameters specifying a broadcast television program.
The emergency broadcast adapter is a component of an emergency broadcast system, is connected with an emergency broadcast platform and a transmission coverage system, or is connected with the transmission coverage system and the transmission coverage system, and plays an important role in timely conveying politics, releasing information, guiding public opinion, stabilizing mind, assisting disaster relief and the like. The current broadcast television transmission coverage modes include analog Frequency Modulation (FM), analog frequency modulation with subcarrier (FM-RDS), digital frequency modulation (FM-CDR), digital cable television (DVB-C), digital terrestrial radio television (DTMB), digital satellite television (DVB-S), digital medium wave, and wired or wireless network (IP). In particular, FM-CDRs are typically co-frequency transmitted with analog FM.
However, the existing FM-CDR-switched emergency broadcast adapter has few receiving channels and poor disaster resistance, and in an emergency situation where only a small number of receiving channel signals are interrupted, the emergency broadcast adapter loses the capability of adapting emergency broadcast messages in an emergency situation, which may be the time when the emergency broadcast adapter plays a critical role. How to make the FM-CDR-converted emergency broadcast adapter fully compatible with all existing broadcast television transmission coverage network systems and improve the channel disaster resistance of the emergency broadcast adapter is a technical problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of poor disaster resistance of an FM-CDR-converted emergency broadcast adapter channel.
In order to solve the technical problems, the invention adopts the following technical scheme:
an emergency broadcast adapter for converting multimode reception into FM-CDR comprises an FM-RDS receiving module, an FM program audio acquisition module, a DVB-C receiving module, a DTMB receiving module, a DVB-S receiving module, a digital medium wave receiving module, an IP network module, a main control module, a safety module, a storage module, an FM-CDR packaging module and an output module, wherein the main control module is connected with the FM-RDS receiving module, the FM program audio acquisition module, the DVB-C receiving module, the DTMB receiving module, the DVB-S receiving module, the digital medium wave receiving module, the IP network module, the safety module, the storage module, the FM-CDR packaging module and the output module.
The FM-RDS receiving module receives FM-RDS signals, demodulates the FM-RDS signals to obtain RDS emergency broadcast instructions and transmits the RDS emergency broadcast instructions to the main control module, and demodulates the RDS emergency broadcast instructions to obtain analog FM program audio and transmits the analog FM program audio to the FM program audio acquisition module.
The FM program audio acquisition module receives FM program analog audio, converts the FM program analog audio into analog audio, transmits the analog audio to the main control module, and synthesizes RDS emergency broadcast instructions and the FM program audio into RDS emergency broadcast messages by the main control module.
The DVB-C receiving module receives DVB-C signals, demodulates the DVB-C signals to obtain DVB-C transmission streams and transmits the DVB-C transmission streams to the main control module, wherein the DVB-C transmission streams comprise DVB-C emergency broadcast messages and DVB-C program audio and video data.
The DTMB receiving module receives the DTMB signals, demodulates the DTMB signals to obtain DTMB transport streams, and transmits the DTMB transport streams to the main control module, wherein the DTMB transport streams comprise DTMB emergency broadcast messages and DTMB program audio and video data.
The DVB-S receiving module receives DVB-S signals, demodulates the DVB-S signals to obtain DVB-S transmission streams and transmits the DVB-S transmission streams to the main control module, wherein the DVB-S transmission streams comprise DVB-S emergency broadcast messages and DVB-S program audio and video data.
The digital medium wave receiving module receives a digital medium wave signal, demodulates the digital medium wave signal to obtain a digital medium wave transmission stream, and transmits the digital medium wave transmission stream to the main control module, wherein the digital medium wave transmission stream comprises a digital medium wave emergency broadcast message and digital medium wave program audio and video data.
The IP network module receives IP network data of a 3G, 4G, 5G, 6G or wired network and transmits the IP network data to the main control module, wherein the IP network data comprises IP network emergency broadcast messages and IP network program audio and video data.
And the safety module checks the signature for the emergency broadcast message.
The storage module stores emergency broadcast messages.
The output module receives the playing content from the main control module, processes the playing content into playing audio and video data, and outputs the playing audio and video data through a digital audio interface or a digital audio and video interface, or outputs the playing audio data through an analog audio interface after digital-to-analog conversion, wherein the processing comprises at least one of decoding, code conversion, text-to-speech and synthesis.
The main control module receives the emergency broadcast messages of all channels from all receiving modules, matches addresses with the emergency broadcast messages, checks the tags of digital certificates, removes the repetition of multi-channel sources, sorts the emergency broadcast messages according to response time and sorts the emergency broadcast messages according to response priority, stores and updates the emergency broadcast messages, responds to the emergency broadcast messages with the highest priority, transmits the emergency broadcast messages to the FM-CDR packaging module for CDR packaging, and controls the output module.
And the FM-CDR encapsulation module encapsulates the emergency broadcast message according to the emergency broadcast message data packet format of the FM-CDR and generates an FM-CDR transmission stream.
And the output module outputs the FM-CDR transmission stream and is in butt joint with the FM-CDR transmitter system.
The receiving modules comprise an FM-RDS receiving module, a DVB-C receiving module, a DTMB receiving module, a DVB-S receiving module, a digital medium wave receiving module and an IP network module, and each quantity is at least one.
The emergency broadcast messages of each channel comprise RDS emergency broadcast messages, DVB-C emergency broadcast messages, DTMB emergency broadcast messages, DVB-S emergency broadcast messages, digital medium wave emergency broadcast messages and IP network emergency broadcast messages.
And the text-to-speech module is connected with the main control module or the output module and is used for converting text into speech and audio.
Further, the main control module transmits the terminal state and the condition of responding to the emergency broadcast message back to the emergency broadcast platform through the IP network module.
Further, the core of the security module is a Huada electronic CIU98 chip or a square inch micro T630 chip.
Furthermore, the core of the text-to-speech module is a SYNs 6658 chip under the heaven of astronomy or a CSK4002 chip of science news.
Compared with the prior art, the invention has the beneficial effects that:
1) the emergency broadcast adapter for realizing multimode reception and FM-CDR conversion simultaneously supports various signal channels of FM-RDS, DVB-C, DTMB, DVB-S, digital medium wave and IP network to receive and process emergency broadcast messages, then transmits the emergency broadcast messages to a digital FM-CDR transmission and emission system, and can still receive the emergency broadcast messages through other receiving channels and transmit the emergency broadcast messages to an FM-CDR transmission coverage network under the condition that signals of partial receiving channels are interrupted, so that the channel disaster resistance performance of the emergency broadcast adapter for FM-CDR conversion is improved.
2) The method can be used for uniformly processing RDS emergency broadcast messages, DVB-C emergency broadcast messages, DTMB emergency broadcast messages, DVB-S emergency broadcast messages, digital medium wave emergency broadcast messages and IP network emergency broadcast messages and converting the RDS emergency broadcast messages, the DVB-S emergency broadcast messages, the digital medium wave emergency broadcast messages and the IP network emergency broadcast messages into FM-CDR emergency broadcast messages, wherein the processing comprises matching addresses, digital certificate signature verification, multi-channel source duplication removal, sequencing according to response time and response priority, storing and updating the emergency broadcast messages and responding to the emergency broadcast messages with the highest priority.
Drawings
FIG. 1 is a schematic block diagram of the architecture of one embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings and examples.
An embodiment of the present invention is shown in fig. 1. An emergency broadcast adapter for converting multimode reception into FM-CDR comprises an FM-RDS receiving module 1, an FM program audio acquisition module 2, a DVB-C receiving module 3, a DTMB receiving module 4, a DVB-S receiving module 5, a digital medium wave receiving module 6, an IP network module 7, a main control module 8, a safety module 9, a storage module 10, an FM-CDR packaging module 11 and an output module 12, wherein the main control module 8 is connected with the FM-RDS receiving module 1, the FM program audio acquisition module 2, the DVB-C receiving module 3, the DTMB receiving module 4, the DVB-S receiving module 5, the digital medium wave receiving module 6, the IP network module 7, the safety module 9, the storage module 10, the FM-CDR packaging module 11 and the output module 12.
The FM-RDS receiving module 1 receives FM-RDS signals, demodulates the FM-RDS signals to obtain RDS emergency broadcast instructions and transmits the RDS emergency broadcast instructions to the main control module 8, and demodulates the RDS emergency broadcast instructions to obtain analog FM program audio and transmits the analog FM program audio to the FM program audio acquisition module 2.
The FM program audio acquisition module 2 receives FM program analog audio, converts the FM program analog audio into analog audio, transmits the analog audio to the main control module 8, and the main control module 8 synthesizes RDS emergency broadcast instructions and the FM program audio into RDS emergency broadcast messages.
The DVB-C receiving module 3 receives DVB-C signals, demodulates the DVB-C signals to obtain DVB-C transmission streams, and transmits the DVB-C transmission streams to the main control module 8, wherein the DVB-C transmission streams comprise DVB-C emergency broadcast messages and DVB-C program audio and video data.
The DTMB receiving module 4 receives the DTMB signals, demodulates the DTMB signals to obtain DTMB transport streams, and transmits the DTMB transport streams to the main control module 8, wherein the DTMB transport streams comprise DTMB emergency broadcast messages and DTMB program audio and video data.
The DVB-S receiving module 5 receives DVB-S signals, demodulates the DVB-S signals to obtain DVB-S transmission streams, and transmits the DVB-S transmission streams to the main control module 8, wherein the DVB-S transmission streams comprise DVB-S emergency broadcast messages and DVB-S program audio and video data.
The digital medium wave receiving module 6 receives the digital medium wave signal, demodulates the digital medium wave signal to obtain a digital medium wave transmission stream, and transmits the digital medium wave transmission stream to the main control module 8, wherein the digital medium wave transmission stream comprises a digital medium wave emergency broadcast message and digital medium wave program audio and video data.
The IP network module 7 receives IP network data of 3G, 4G, 5G, 6G or a wired network and transmits the IP network data to the main control module 8, wherein the IP network data comprises IP network emergency broadcast messages and IP network program audio and video data.
And the safety module 9 checks the emergency broadcast message.
The storage module 10 stores emergency broadcast messages.
The output module 12 receives the playing content from the main control module 8, processes the playing content into playing audio and video data, and outputs the playing audio and video data through a digital audio interface or a digital audio and video interface, or outputs the playing audio data through an analog audio interface after performing digital-to-analog conversion, wherein the processing includes at least one of decoding, encoding conversion, text-to-speech and synthesis.
The main control module 8 receives the emergency broadcast messages of each channel from each receiving module, matches addresses with the emergency broadcast messages, checks the tags of the digital certificates, removes the duplication of the sources of the multiple channels, sorts the emergency broadcast messages according to response time and sorts the emergency broadcast messages according to response priority, stores and updates the emergency broadcast messages, transmits the emergency broadcast messages with the highest response priority to the FM-CDR packaging module 11 for CDR packaging, and controls the output module 12.
The FM-CDR encapsulation module 11 encapsulates the emergency broadcast message according to the emergency broadcast message data packet format of the FM-CDR and generates the FM-CDR transport stream.
The output module 12 outputs the FM-CDR transport stream, and is connected to the FM-CDR transmitter system.
The receiving modules comprise an FM-RDS receiving module 1, a DVB-C receiving module 3, a DTMB receiving module 4, a DVB-S receiving module 5, a digital medium wave receiving module 6 and an IP network module 7, and each quantity is at least one.
The emergency broadcast messages of each channel comprise RDS emergency broadcast messages, DVB-C emergency broadcast messages, DTMB emergency broadcast messages, DVB-S emergency broadcast messages, digital medium wave emergency broadcast messages and IP network emergency broadcast messages.
Further, the system also comprises a text-to-speech module 13 which is connected with the main control module 8 or the output module 12 and used for converting text into speech and audio.
Further, the main control module 8 transmits the terminal status and the response emergency broadcast message condition back to the emergency broadcast platform through the IP network module 7.
Further, the core of the security module 9 is a huada electronic CIU98 chip or a square inch micro T630 chip.
Further, the core of the text-to-speech module 13 is a SYNs 6658 chip under the heaven of astronomy or a CSK4002 chip in science news.
The beneficial effects are that:
1) the emergency broadcast adapter for realizing multimode reception and FM-CDR conversion simultaneously supports various signal channels of FM-RDS, DVB-C, DTMB, DVB-S, digital medium wave and IP network to receive and process emergency broadcast messages, then transmits the emergency broadcast messages to a digital FM-CDR transmission and emission system, and can still receive the emergency broadcast messages through other receiving channels and transmit the emergency broadcast messages to an FM-CDR transmission coverage network under the condition that signals of partial receiving channels are interrupted, so that the channel disaster resistance performance of the emergency broadcast adapter for FM-CDR conversion is improved.
2) The method can be used for uniformly processing RDS emergency broadcast messages, DVB-C emergency broadcast messages, DTMB emergency broadcast messages, DVB-S emergency broadcast messages, digital medium wave emergency broadcast messages and IP network emergency broadcast messages and converting the RDS emergency broadcast messages, the DVB-S emergency broadcast messages, the digital medium wave emergency broadcast messages and the IP network emergency broadcast messages into FM-CDR emergency broadcast messages, wherein the processing comprises matching addresses, digital certificate signature verification, multi-channel source duplication removal, sequencing according to response time and response priority, storing and updating the emergency broadcast messages and responding to the emergency broadcast messages with the highest priority.
The present invention has been described in terms of embodiments, and it will be appreciated that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (5)
1. An emergency broadcast adapter capable of converting multimode reception into FM-CDR is characterized by comprising an FM-RDS receiving module, an FM program audio acquisition module, a DVB-C receiving module, a DTMB receiving module, a DVB-S receiving module, a digital medium wave receiving module, an IP network module, a main control module, a safety module, a storage module, an FM-CDR packaging module and an output module, wherein the main control module is connected with the FM-RDS receiving module, the FM program audio acquisition module, the DVB-C receiving module, the DTMB receiving module, the DVB-S receiving module, the digital medium wave receiving module, the IP network module, the safety module, the storage module, the FM-CDR packaging module and the output module;
the FM-RDS receiving module receives FM-RDS signals, demodulates the FM-RDS signals to obtain RDS emergency broadcast instructions and transmits the RDS emergency broadcast instructions to the main control module, and demodulates the RDS emergency broadcast instructions to obtain analog FM program audio and transmits the analog FM program audio to the FM program audio acquisition module;
the FM program audio acquisition module receives FM program analog audio, converts the FM program analog audio into analog audio, transmits the analog audio to the main control module, and synthesizes RDS emergency broadcast instructions and the FM program audio into RDS emergency broadcast messages by the main control module;
the DVB-C receiving module receives DVB-C signals, demodulates the DVB-C signals to obtain DVB-C transmission streams and transmits the DVB-C transmission streams to the main control module, wherein the DVB-C transmission streams comprise DVB-C emergency broadcast messages and DVB-C program audio and video data;
the DTMB receiving module receives DTMB signals, demodulates the DTMB signals to obtain DTMB transport streams and transmits the DTMB transport streams to the main control module, and the DTMB transport streams comprise DTMB emergency broadcast messages and DTMB program audio and video data;
the DVB-S receiving module receives DVB-S signals, demodulates the DVB-S signals to obtain DVB-S transmission streams and transmits the DVB-S transmission streams to the main control module, wherein the DVB-S transmission streams comprise DVB-S emergency broadcast messages and DVB-S program audio and video data;
the digital medium wave receiving module receives a digital medium wave signal, demodulates the digital medium wave signal to obtain a digital medium wave transmission stream, and transmits the digital medium wave transmission stream to the main control module, wherein the digital medium wave transmission stream comprises a digital medium wave emergency broadcast message and digital medium wave program audio and video data;
the IP network module receives IP network data of a 3G, 4G, 5G, 6G or wired network and transmits the IP network data to the main control module, wherein the IP network data comprises IP network emergency broadcast messages and IP network program audio and video data;
the safety module checks the signature corresponding to the emergency broadcast message;
the storage module is used for storing emergency broadcast messages;
the output module receives the playing content from the main control module, processes the playing content into playing audio and video data, and outputs the playing audio and video data through a digital audio interface or a digital audio and video interface, or outputs the playing audio data through an analog audio interface after digital-to-analog conversion, wherein the processing comprises at least one of decoding, code conversion, text-to-speech and synthesis;
the main control module receives the emergency broadcast messages of each channel from each receiving module, matches addresses with the emergency broadcast messages, checks the tags of the digital certificates, removes the repetition of the sources of the channels, sorts the emergency broadcast messages according to response time and ranks the emergency broadcast messages according to response priority, stores and updates the emergency broadcast messages, transmits the emergency broadcast messages with the highest response priority to the FM-CDR packaging module for CDR packaging, and controls the output module;
the FM-CDR encapsulation module encapsulates the emergency broadcast message according to the emergency broadcast message data packet format of the FM-CDR and generates an FM-CDR transmission stream;
the output module outputs the FM-CDR transmission stream and is in butt joint with the FM-CDR transmitter system;
each receiving module comprises an FM-RDS receiving module, a DVB-C receiving module, a DTMB receiving module, a DVB-S receiving module, a digital medium wave receiving module and an IP network module, and each quantity is at least one;
the emergency broadcast messages of each channel comprise RDS emergency broadcast messages, DVB-C emergency broadcast messages, DTMB emergency broadcast messages, DVB-S emergency broadcast messages, digital medium wave emergency broadcast messages and IP network emergency broadcast messages.
2. The emergency broadcast adaptor for converting multimode receiving into FM-CDR according to claim 1, further comprising a text-to-speech module connected to the main control module or the output module for performing text-to-speech audio conversion.
3. The adapter as claimed in claim 1, wherein the host module transmits the terminal status and the response emergency broadcast message back to the emergency broadcast platform through the IP network module.
4. The adapter of claim 1, wherein the core of the security module is a huada electronic CIU98 chip or a cun micro T630 chip.
5. The emergency broadcast adapter for converting multimode reception into FM-CDR of claim 2, wherein the core of the text-to-speech module is a SYNs 6658 chip under astronomy heaven or a CSK4002 chip in scientific news.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111560038.0A CN114189303A (en) | 2021-12-21 | 2021-12-21 | Multimode receiving-FM-CDR-converted emergency broadcast adapter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111560038.0A CN114189303A (en) | 2021-12-21 | 2021-12-21 | Multimode receiving-FM-CDR-converted emergency broadcast adapter |
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| CN114189303A true CN114189303A (en) | 2022-03-15 |
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| CN202111560038.0A Pending CN114189303A (en) | 2021-12-21 | 2021-12-21 | Multimode receiving-FM-CDR-converted emergency broadcast adapter |
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