CN210351188U - Emergency broadcasting system based on mixed network transmission - Google Patents
Emergency broadcasting system based on mixed network transmission Download PDFInfo
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- CN210351188U CN210351188U CN201922083304.XU CN201922083304U CN210351188U CN 210351188 U CN210351188 U CN 210351188U CN 201922083304 U CN201922083304 U CN 201922083304U CN 210351188 U CN210351188 U CN 210351188U
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Abstract
The utility model discloses an emergency broadcasting system based on mixed network transmission, which comprises a data receiving module, a signature checking module, a channel selection module and a transmitting module, wherein the data receiving module is used for receiving digital broadcasting information; the signature verification module is connected with the data receiving module and is used for extracting a digital signature carried in the digital broadcast information and verifying a signature; the channel selection module is connected with the label checking module and used for selecting at least one transmitting channel when the label checking module passes; the transmitting module is connected with the channel selection module and is used for transmitting the digital broadcast information from the channel selected by the channel selection module. The utility model discloses can send digital broadcast information through multiple passageway, improve the coverage of digital broadcast information's sending efficiency and transmission.
Description
Technical Field
The utility model relates to an emergency broadcasting system based on mixed network transmission.
Background
Natural disasters in China are various and high in frequency, and when emergencies occur, governments and related departments can provide emergency information for the public in a broadcasting mode, and the emergency means is called emergency broadcasting. In the existing emergency broadcasting system, service data and management data are sent to an emergency broadcasting adapter through the same channel, and if a disaster area is wide or communication faults happen, emergency information cannot be quickly sent.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide an emergent broadcasting system based on mixed network transmission, it can send digital broadcast information through multiple passageway, improves digital broadcast information's transmission efficiency and the coverage of sending.
In order to solve the technical problem, the technical scheme of the utility model is that: an emergency broadcasting system based on mixed network transmission comprises a data receiving module, a signature checking module, a channel selection module and a transmitting module, wherein,
the data receiving module is used for receiving digital broadcast information;
the signature verification module is connected with the data receiving module and is used for extracting a digital signature carried in the digital broadcast information and verifying a signature;
the channel selection module is connected with the label checking module and used for selecting at least one transmitting channel when the label checking module passes;
the transmitting module is connected with the channel selection module and is used for transmitting the digital broadcast information from the channel selected by the channel selection module.
Further, the transmitting channel comprises an FM channel, an IP channel, a 4G/5G channel, a digital video broadcasting channel and a ground digital multimedia broadcasting channel.
Further provides a specific scheme of the transmitting module, and the transmitting module comprises an FM exciter, a QAM modulator and a DTMB exciter.
Further, the emergency broadcasting system based on the mixed network transmission also comprises a broadcasting information acquisition module, an encoding module, a signature module and a sending module, wherein,
the broadcast information acquisition module is used for acquiring broadcast information;
the coding module is connected with the broadcast information acquisition module and is used for converting the acquired broadcast information into digital broadcast information;
the signature module is connected with the encoding module and is used for at least carrying out digital signature on the digital broadcast information;
the sending module is connected with the signature module and the data receiving module and is used for sending the signed digital broadcast information to the data receiving module.
Further, the encoding module is an audio encoder.
After the technical scheme is adopted, the data receiving module receives digital broadcast information, the signature checking module extracts a digital signature carried in the digital broadcast information and checks a signature, after the signature checking passes, the channel selection module selects at least one transmitting channel, the transmitting module transmits the digital broadcast information from the channel selected by the channel selection module, the digital broadcast information can be transmitted through various channels, the transmission efficiency of the digital broadcast information is improved, and the coverage range of the digital broadcast information is enlarged.
Drawings
Fig. 1 is a schematic structural diagram of the emergency broadcasting system based on the hybrid network transmission of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1, an emergency broadcasting system based on mixed network transmission comprises a data receiving module 1, a signature checking module 2, a channel selecting module 3 and a transmitting module 4, wherein,
the data receiving module 1 is used for receiving digital broadcast information;
the signature verification module 2 is connected to the data receiving module 1, the signature verification module 2 is configured to extract a digital signature carried in the digital broadcast information and perform signature verification, the signature verification module 2 may use existing software and hardware with a cryptographic qualification, a specific structure of the signature verification module is the prior art, and details are not repeated in this embodiment;
the channel selection module 3 is connected with the label checking module 2 and is used for selecting at least one transmitting channel when the label checking passes;
the transmitting module 4 is connected to the channel selecting module 3 and is configured to transmit the digital broadcast information from the channel selected by the channel selecting module 3; specifically, the transmitted digital broadcast information is received and broadcasted by the broadcast receiving terminal, and the digital broadcast information is transmitted through a plurality of channels, so that the transmission efficiency of the digital broadcast information is improved, and the coverage range of the digital broadcast information is expanded.
Specifically, the transmission channel may include an FM channel, an IP channel, a 4G/5G channel, a digital video broadcasting channel, and a terrestrial digital multimedia broadcasting channel, and the transmission channel may also be another channel.
In the present embodiment, the transmission module 4 includes, for example, but not limited to, an FM driver, a QAM modulator, and a DTMB driver.
As shown in fig. 1, the emergency broadcast system based on the hybrid network transmission further includes a broadcast information collecting module 5, an encoding module 6, a signature module 7 and a transmitting module 8, wherein,
the broadcast information collecting module 5 is configured to collect broadcast information, specifically, the broadcast information may be audio information input through a microphone, or audio information input through an external line or stored in a memory;
the coding module 6 is connected with the broadcast information acquisition module 5 and is used for converting the acquired broadcast information into digital broadcast information;
the signature module 7 is connected to the encoding module 6 and configured to perform at least digital signature on the digital broadcast information, where the signature module 7 may use existing digital signature software and hardware, and a specific structure of the signature module is the prior art, which is not described in detail in this embodiment;
the sending module 8 is connected to the signature module 7 and the data receiving module 1, and is configured to send signed digital broadcast information to the data receiving module 1, specifically, the signature module 7 performs digital signature on the digital broadcast information by using its own private key, attaches the digital signature to the digital broadcast information, and transmits the digital signature, and the signature verification module 2 verifies the digital signature by using the public key of the signature module 7, so as to ensure that only legal digital broadcast information is processed, where a cryptographic algorithm of the digital signature is SM2 or SM3 algorithm specified by the national crypto authority.
In this embodiment, the encoding module 6 may be an audio encoder.
The working principle of the utility model is as follows:
the data receiving module 1 receives digital broadcast information, the signature checking module 2 extracts a digital signature carried in the digital broadcast information and checks a signature, after the signature checking passes, the channel selection module 3 selects at least one transmitting channel, the transmitting module 4 transmits the digital broadcast information from the channel selected by the channel selection module 3, the digital broadcast information can be transmitted through various channels, the transmitting efficiency of the digital broadcast information is improved, and the coverage range of the digital broadcast information is enlarged.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An emergency broadcasting system based on mixed network transmission is characterized by comprising a data receiving module (1), a signature checking module (2), a channel selection module (3) and a transmitting module (4),
the data receiving module (1) is used for receiving digital broadcast information;
the signature verification module (2) is connected with the data receiving module (1), and the signature verification module (2) is used for extracting a digital signature carried in the digital broadcast information and verifying a signature;
the channel selection module (3) is connected with the label checking module (2) and is used for selecting at least one emission channel when the label checking passes;
the transmitting module (4) is connected with the channel selection module (3) and is used for transmitting the digital broadcast information from the channel selected by the channel selection module (3).
2. The emergency broadcast system based on the hybrid network transmission according to claim 1, wherein the transmission channels comprise an FM channel, an IP channel, a 4G/5G channel, a digital video broadcasting channel, and a terrestrial digital multimedia broadcasting channel.
3. The emergency broadcast system based on the hybrid network transmission according to claim 1, characterized in that the transmission module (4) comprises an FM exciter, a QAM modulator and a DTMB exciter.
4. The emergency broadcasting system based on the hybrid network transmission according to claim 1, further comprising a broadcast information collecting module (5), an encoding module (6), a signature module (7) and a transmitting module (8), wherein,
the broadcast information acquisition module (5) is used for acquiring broadcast information;
the coding module (6) is connected with the broadcast information acquisition module (5) and is used for converting the acquired broadcast information into digital broadcast information;
the signature module (7) is connected with the encoding module (6) and is used for at least digitally signing the digital broadcast information;
the sending module (8) is connected with the signature module (7) and the data receiving module (1) and is used for sending the signed digital broadcast information to the data receiving module (1).
5. The emergency broadcast system based on the hybrid network transmission according to claim 4, wherein the encoding module (6) is an audio encoder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922083304.XU CN210351188U (en) | 2019-11-27 | 2019-11-27 | Emergency broadcasting system based on mixed network transmission |
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| CN201922083304.XU CN210351188U (en) | 2019-11-27 | 2019-11-27 | Emergency broadcasting system based on mixed network transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367173A (en) * | 2020-10-27 | 2021-02-12 | 北京数码视讯科技股份有限公司 | Information processing method and device, chip, terminal and electronic equipment |
| CN112688750A (en) * | 2020-12-09 | 2021-04-20 | 福建新大陆通信科技股份有限公司 | Emergency broadcasting terminal timing broadcasting method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367173A (en) * | 2020-10-27 | 2021-02-12 | 北京数码视讯科技股份有限公司 | Information processing method and device, chip, terminal and electronic equipment |
| CN112688750A (en) * | 2020-12-09 | 2021-04-20 | 福建新大陆通信科技股份有限公司 | Emergency broadcasting terminal timing broadcasting method |
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