WO2024002380A2 - 被fm-cdr唤醒应急广播的dtmb机顶盒 - Google Patents

被fm-cdr唤醒应急广播的dtmb机顶盒 Download PDF

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Publication number
WO2024002380A2
WO2024002380A2 PCT/CN2023/107000 CN2023107000W WO2024002380A2 WO 2024002380 A2 WO2024002380 A2 WO 2024002380A2 CN 2023107000 W CN2023107000 W CN 2023107000W WO 2024002380 A2 WO2024002380 A2 WO 2024002380A2
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emergency
dtmb
controller
cdr
module
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PCT/CN2023/107000
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English (en)
French (fr)
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WO2024002380A3 (zh
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王修丽
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六安景顺长华科技有限公司
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Priority to PCT/CN2023/107000 priority Critical patent/WO2024002380A2/zh
Priority to ZA2023/08113A priority patent/ZA202308113B/en
Publication of WO2024002380A2 publication Critical patent/WO2024002380A2/zh
Publication of WO2024002380A3 publication Critical patent/WO2024002380A3/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals

Definitions

  • the present invention relates to the technical field of emergency broadcasting, and in particular to a DTMB set-top box that is awakened by FM-CDR for emergency broadcasting.
  • the emergency broadcast management platform When a natural disaster or public incident occurs, the emergency broadcast management platform urgently sends emergency information to the set-top box terminal through the radio and television transmission network.
  • the digital terrestrial television (Digital Terrestrial Multimedia Broadcast, DTMB) set-top box is on standby or playing radio and television programs, there is a problem of how to respond and temporarily insert the emergency content of the emergency broadcast.
  • DTMB Digital Terrestrial Multimedia Broadcast
  • Frequency Modulation-C hina Digital Radio transmits data through the FM-CDR broadcast coverage network and can be used to send emergency broadcast messages to DTMB set-top boxes.
  • Emergency broadcast messages include emergency instructions and emergency content.
  • Some FM-CDR wakes up the DTMB set-top box for emergency broadcasting.
  • the DTMB set-top box plays, it transmits the DTMB frequency point, audio packet identification code (PacketIdentifier, PID), and video PID parameters of the emergency radio and television program to the DTMB set-top box through FM-CDR.
  • the emergency broadcast can be played by plugging in, but the emergency broadcast cannot be transmitted and played when the DMTB set-top box is in standby mode.
  • the purpose of the present invention is to provide a DTMB set-top box that is awakened by FM-CDR for emergency broadcasts, so as to solve the problem that the DMTB set-top box cannot transmit and play emergency broadcasts when it is in standby mode.
  • the present invention provides the following solutions:
  • a DTMB set-top box that is awakened by FM-CDR for emergency broadcasting including: FM-CDR receiving and demodulating module, decoding, analysis and signature verification module, first controller, DTMB receiving and demodulating module, DTMB decoding, decryption and analysis module, and second controller , output module and power control device;
  • the FM-CDR receiving and demodulating module is connected to the decoding, analysis and signature verification module; the decoding, analysis and signature verification module is connected to the first controller;
  • the FM-CDR receiving and demodulating module is used to receive and demodulate the FM-CDR signal of digital audio broadcast in the frequency modulation frequency band, and generate a transmission stream of the FM-CDR signal;
  • the decoding, analysis and signature verification module is used to extract the data packets in the predefined packet identification code PID from the transmission stream of the FM-CDR signal, generate emergency instructions and emergency content through decoding and analysis, and verify the emergency instructions. Digital signature to transmit the verified emergency instructions and emergency content to the first controller;
  • the first controller is used to check in real time whether the emergency instruction is received. If the emergency instruction is received, wake up the second controller and send the emergency instruction and the emergency instruction to the second controller. content;
  • the second controller is connected to the DTMB decoding and decryption analysis module, the output module and the power controller; the DTMB decoding, decryption and analysis module is connected to the DTMB receiving and demodulation module;
  • the DTMB receiving and demodulating module is used to receive and demodulate the terrestrial digital television DTMB signal and generate a transmission stream of the DTMB signal;
  • the DTMB decoding and analysis module is used to decode and analyze the transport stream of the DTMB signal to generate audio and video data of radio and television programs;
  • the second controller is used to execute user playback instructions, transmit the video and audio data to the output module for playback, and execute emergency instructions to transmit the emergency content to the output module for playback; the emergency instructions The priority is higher than the user playback instruction;
  • the second controller Before executing the emergency command, the second controller determines the current state of the DTMB set-top box. When the current state of the DTMB set-top box is a standby state, it powers on and starts the output module; when the current state of the DTMB set-top box is When the state is in the playing state, the emergency content is played in real time.
  • it also includes: emergency content conversion module;
  • the emergency content conversion module is connected to the first controller and is used to match and convert the received emergency content according to the playback type in the emergency instruction under the control of the first controller. .
  • it also includes: a first memory;
  • the first memory is connected to the first controller and is used to store the emergency instructions and the emergency content.
  • it also includes: a second memory;
  • the second memory is connected to the second controller and is used to store the DTMB frequency, audio PID and video PID of the radio and television programs played before the emergency broadcast.
  • the second controller is used to determine the current state of the DTMB set-top box before executing the emergency command. If the DTMB set-top box is in the playing state, save the DTMB frequency point, audio PID and audio PID of the original broadcasting radio and television program. The video PID plays the emergency content in real time, and resumes the original broadcast of the radio and television program after the emergency broadcast ends.
  • Optional also includes: power controller;
  • the power controller is connected to the second controller
  • the second controller controls the power controller to power on and start an external device;
  • the external device is a television, a display screen, a speaker or a speaker.
  • the main chip of the FM-CDR receiving and demodulating module is Haier Hi5216.
  • the present invention provides a DTMB set-top box that is awakened by FM-CDR for emergency broadcast.
  • the present invention utilizes the FM-CDR receiving demodulation module and the decoding, analysis and signature verification module.
  • the first controller realizes that the DTMB set-top box receives the emergency instructions and emergency content transmitted by the FM-CDR signal in real time, and uses the first controller, the second controller and the output module to realize that the DTMB set-top box can insert emergency broadcasts in the standby state and the playback state. .
  • Figure 1 is a schematic structural diagram of a DTMB set-top box that is awakened by FM-CDR for emergency broadcast provided by the present invention.
  • the purpose of the present invention is to provide a DTMB set-top box that is awakened by FM-CDR for emergency broadcasts, so that the DTMB set-top box can insert emergency broadcasts in both standby and playback states.
  • the present invention provides a DTMB set-top box that is awakened by FM-CDR for emergency broadcast, including an FM-CDR receiving and demodulating module 1, a decoding, analysis and signature verification module 2, a first controller 3, and a first memory 4 , DTMB reception and demodulation module 5, DTMB decoding, decryption and analysis module 6, second controller 7, second memory 8 and output module 9; FM-CDR reception and demodulation module 1 is connected to decoding, analysis and signature verification module 2, and decoding, analysis and signature verification Module 2 is connected to the first controller 3, the first controller 3 is connected to the first memory 4 and the second controller 7, the DTMB receiving and demodulating module 5 is connected to the DTMB decoding and decryption analysis module 6, and the DTMB decoding and decryption analysis module 6 is connected to the second control The second controller 7 is connected to the second memory 8 and the output module 9 .
  • the FM-CDR receiving and demodulating module 1 receives the FM-CDR signal of the digital audio broadcast in the frequency modulation frequency band. After demodulation, the TS stream of the FM-CDR is obtained and passed to the decoding, analysis and signature verification module 2.
  • the decoding, analysis and signature verification module 2 extracts the predefined PID from the TS stream of FM-CDR.
  • the data packet is decoded and analyzed to obtain the emergency instruction and emergency content, and the digital signature of the emergency instruction is verified, and the emergency instruction and emergency content that pass the verification are passed to the first controller 3;
  • the emergency instruction includes the instruction number, The instruction platform number, playback area number, instruction priority, playback date and time, playback duration, playback volume, playback frequency and playback type;
  • the emergency content includes text, or audio, or video, or audio and video content; all The playback type includes text, audio, video, or audio and video.
  • the first controller 3 checks in real time whether it receives the emergency command transmitted by FM-CDR. If the emergency command is received, it wakes up the second controller 7 on time and sends the emergency command and emergency content to the second controller 7 .
  • the first memory 4 stores emergency instructions and emergency content.
  • the DTMB receiving and demodulating module 5 receives the terrestrial digital TV DTMB signal, and after demodulation, obtains the DTMB Transport Stream (TS) stream, which is passed to the DTMB decoding, decryption and analysis module 6.
  • TS Transport Stream
  • the DTMB decoding, decryption and analysis module 6 decodes, decrypts and analyzes the TS stream of DTMB to obtain the video and audio data of radio and television programs.
  • the second controller 7 executes user playback instructions to transmit the video and audio data of radio and television programs to the output module 9 for playback, and executes emergency instructions to transmit emergency content to the output module 9 for playback.
  • the emergency instructions have a higher priority than the user playback instructions.
  • the second memory 8 stores the DTMB frequency, audio PID, and video PID of the radio and television programs played before the emergency broadcast.
  • the output module 9 includes at least one of a digital audio output interface, a digital audio and video output interface, an analog audio output interface, an analog audio and video output interface, and a serial port.
  • the second controller 7 first determines the state of the set-top box before executing the emergency command. If the set-top box is in a standby state, it powers on and starts the output module 9 .
  • the second controller 7 first determines the state of the set-top box before executing the emergency command. If the set-top box is in the playing state, the DTMB frequency, audio PID and video PID of the original broadcasting radio and television program are saved for emergency use. After the broadcast ends, the original broadcast of the radio and television program is resumed.
  • the present invention also includes: a power controller 10, and the second controller 7 controls its power-on and activation of an external television, display screen, speaker, or speaker before executing the emergency command.
  • the present invention also includes: an emergency content conversion module 11, which, under the control of the first controller 3, matches and converts the received emergency content according to the playback type in the emergency instruction.
  • the conversion includes text to audio, or audio to text, or text to video, or text to audio and video, or audio to audio and video, or audio and video to audio.
  • the main chip of the FM-CDR receiving and demodulating module 1 is Haier Hi5216.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

本发明提供了一种被FM-CDR唤醒应急广播的DTMB机顶盒，涉及应急广播技术领域，包括：利用FM-CDR接收解调模块、解码解析验签模块以及第一控制器实现DTMB机顶盒实时接收FM-CDR信号传输的应急指令和应急内容，利用第一控制器、第二控制器以及输出模块实现DTMB机顶盒在待机状态和播放状态下都能插播应急广播。

Description

被FM-CDR唤醒应急广播的DTMB机顶盒 技术领域
本发明涉及应急广播技术领域，特别是涉及一种被FM-CDR唤醒应急广播的DTMB机顶盒。
背景技术
在发生自然灾害或社会公共事件时，应急广播管理平台通过广播电视传输网向机顶盒终端紧急发送应急信息。在地面数字电视(Digital Terrestrial Multimedia Broadcast，DTMB)机顶盒待机或正在播放广播电视节目时，存在怎样响应并临时插入播放应急广播的应急内容的问题。
调频频段数字音频广播(Frequency Modulation-C hina D igital R adio，FM-CDR)经FM-CDR广播覆盖网传输数据，可用来向DTMB机顶盒发送应急广播消息，应急广播消息包括应急指令和应急内容。
有的FM-CDR唤醒应急广播的DTMB机顶盒，是在DTMB机顶盒播放时通过FM-CDR传输应急广播电视节目的DTMB频点、音频数据包识别码(PacketIdentifier，PID)、视频PID参数到DTMB机顶盒，以插入播放应急广播，但在DMTB机顶盒处于待机状态下无法传输和播放应急广播。
发明内容
本发明的目的是提供一种被FM-CDR唤醒应急广播的DTMB机顶盒，以解决在DMTB机顶盒处于待机状态下无法传输和播放应急广播的问题。
为实现上述目的，本发明提供了如下方案：
一种被FM-CDR唤醒应急广播的DTMB机顶盒，包括：FM-CDR接收解调模块、解码解析验签模块、第一控制器、DTMB接收解调模块、DTMB解码解密解析模块、第二控制器、输出模块以及电源控制 器；
所述FM-CDR接收解调模块连接所述解码解析验签模块；所述解码解析验签模块连接所述第一控制器；
所述FM-CDR接收解调模块用于接收并解调调频频段数字音频广播FM-CDR信号，生成FM-CDR信号的传输流；
所述解码解析验签模块用于从所述FM-CDR信号的传输流种提取预定义数据包识别码PID中的数据包，经解码解析生成应急指令以及应急内容，并验证所述应急指令的数字签名，将验证合格的应急指令以及应急内容传输至所述第一控制器；
所述第一控制器用于实时检查是否接收到所述应急指令，若接收到所述应急指令，唤醒所述第二控制器，并向所述第二控制器发送所述应急指令以及所述应急内容；
第二控制器连接DTMB解码解密解析模块、所述输出模块以及所述电源控制器；所述DTMB解码解密解析模块连接DTMB接收解调模块连接；
所述DTMB接收解调模块，用于接收并解调地面数字电视DTMB信号，生成DTMB信号的传输流；
所述DTMB解码解密解析模块用于解码解析所述DTMB信号的传输流，生成广播电视节目的视音频数据；
所述第二控制器用于执行用户播放指令，将所述视音频数据传输至所述输出模块进行播放，以及执行应急指令，将所述应急内容传输至所述输出模块进行播放；所述应急指令的优先级高于所述用户播放指令；
所述第二控制器在执行所述应急指令前，判断DTMB机顶盒的的当前状态，当所述DTMB机顶盒的当前状态为待机状态，上电和启动所述输出模块；当所述DTMB机顶盒的当前状态为播放状态时，实时播放所述应急内容。
可选的，还包括：应急内容转换模块；
所述应急内容转换模块，与所述第一控制器相连接，用于在所述第一控制器控制下，将接收到的所述应急内容按照所述应急指令中的播放类型进行匹配和转换。
可选的，还包括：第一存储器；
所述第一存储器，与所述第一控制器相连接，用于存储所述应急指令以及所述应急内容。
可选的，还包括：第二存储器；
所述第二存储器，与所述第二控制器相连接，用于存储在播放应急广播前所播放的广播电视节目的DTMB频点、音频PID以及视频PID。
可选的，所述第二控制器用于执行所述应急指令前，判断所述DTMB机顶盒的当前状态，若所述DTMB机顶盒为播放状态，保存原播放广播电视节目的DTMB频点、音频PID以及视频PID，实时播放所述应急内容，当应急广播结束后恢复所述原播放广播电视节目。
可选的，还包括：电源控制器；
所述电源控制器与所述第二控制器相连接；
所述第二控制器在执行应急指令前，控制所述电源控制器上电和启动外接设备；所述外接设备为电视机、显示屏、音箱或喇叭。
可选的，所述FM-CDR接收解调模块的主芯片为海尔Hi5216。
根据本发明提供的具体实施例，本发明公开了以下技术效果：本发明提供了一种被FM-CDR唤醒应急广播的DTMB机顶盒，本发明利用FM-CDR接收解调模块、解码解析验签模块以及第一控制器实现DTMB机顶盒实时接收FM-CDR信号传输的应急指令和应急内容，利用第一控制器、第二控制器以及输出模块实现DTMB机顶盒在待机状态和播放状态下都能插播应急广播。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描 述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明所提供的被FM-CDR唤醒应急广播的DTMB机顶盒结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的目的是提供一种被FM-CDR唤醒应急广播的DTMB机顶盒，实现DTMB机顶盒在待机状态和播放状态下都能插播应急广播。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
如图1所示，本发明提供了一种被FM-CDR唤醒应急广播的DTMB机顶盒，包括FM-CDR接收解调模块1、解码解析验签模块2、第一控制器3、第一存储器4、DTMB接收解调模块5、DTMB解码解密解析模块6、第二控制器7、第二存储器8以及输出模块9；FM-CDR接收解调模块1连接解码解析验签模块2，解码解析验签模块2连接第一控制器3，第一控制器3连接第一存储器4、第二控制器7，DTMB接收解调模块5连接DTMB解码解密解析模块6，DTMB解码解密解析模块6连接第二控制器7，第二控制器7连接第二存储器8、输出模块9。
所述FM-CDR接收解调模块1，接收调频频段数字音频广播FM-CDR信号，经解调，得到FM-CDR的TS流，传给解码解析验签模块2。
所述解码解析验签模块2，从FM-CDR的TS流中提取预定义PID 的数据包，经解码解析，得到应急指令和应急内容，并验证应急指令的数字签名，将验签合格的应急指令和应急内容传给第一控制器3；所述应急指令，包括指令编号、发指令平台编号、播放区域编号、指令优先级、播放日期时间、播放时长、播放音量、播放频次和播放类型；所述应急内容，包括文本、或音频、或视频、或音视频的内容；所述播放类型，包括文本、或音频、或视频、或音视频。
所述第一控制器3，实时检查是否接收到FM-CDR传输的应急指令，如接收到应急指令，则按时唤醒第二控制器7，并向第二控制器7发送应急指令、应急内容。
所述第一存储器4，存储应急指令以及应急内容。
所述DTMB接收解调模块5，接收地面数字电视DTMB信号，经解调，得到DTMB的传输(Transport Stream，TS)流，传给DTMB解码解密解析模块6。
所述DTMB解码解密解析模块6，将DTMB的TS流，进行解码解密解析，得到广播电视节目的视音频数据。
所述第二控制器7，执行用户播放指令将广播电视节目的视音频数据传给输出模块9播放，执行应急指令将应急内容传给输出模块9播放，应急指令优先级高于用户播放指令。
所述第二存储器8，存储播放应急广播前所播放广播电视节目的DTMB频点、音频PID、视频PID。
所述输出模块9，包括数字音频输出接口、数字音视频输出接口、模拟音频输出接口、模拟音视频输出接口、串口的至少一种。
在实际应用中，所述第二控制器7，在执行应急指令前，先判断机顶盒状态，如机顶盒为待机状态，则上电和启动输出模块9。
在实际应用中，所述第二控制器7，在执行应急指令前，先判断机顶盒状态，如机顶盒为播放状态，则保存原播放广播电视节目的DTMB频点、音频PID以及视频PID，以便应急广播结束后恢复原播放广播电视节目。
在实际应用中，本发明还包括：电源控制器10，所述第二控制器7在执行应急指令前，控制其上电和启动外接电视机、或显示屏、或音箱、或喇叭。
在实际应用中，本发明还包括：应急内容转换模块11，在第一控制器3控制下，将收到的应急内容按应急指令中播放类型，进行匹配和转换。转换包括文本转音频、或音频转文本、或文本转视频、或文本转音视频、或音频转音视频、或音视频转音频。
在实际应用中，所述FM-CDR接收解调模块1的主芯片是海尔Hi5216。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本发明的限制。

Claims (7)

  1. 一种被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，包括：FM-CDR接收解调模块、解码解析验签模块、第一控制器、DTMB接收解调模块、DTMB解码解密解析模块、第二控制器、输出模块以及电源控制器；
    所述FM-CDR接收解调模块连接所述解码解析验签模块；所述解码解析验签模块连接所述第一控制器；
    所述FM-CDR接收解调模块用于接收并解调调频频段数字音频广播FM-CDR信号，生成FM-CDR信号的传输流；
    所述解码解析验签模块用于从所述FM-CDR信号的传输流中提取预定义数据包识别码PID中的数据包，经解码解析生成应急指令以及应急内容，并验证所述应急指令的数字签名，将验证合格的应急指令以及应急内容传输至所述第一控制器；
    所述第一控制器用于实时检查是否接收到所述应急指令，若接收到所述应急指令，唤醒所述第二控制器，并向所述第二控制器发送所述应急指令以及所述应急内容；
    第二控制器连接DTMB解码解密解析模块、所述输出模块以及所述电源控制器；所述DTMB解码解密解析模块连接DTMB接收解调模块连接；
    所述DTMB接收解调模块，用于接收并解调地面数字电视DTMB信号，生成DTMB信号的传输流；
    所述DTMB解码解密解析模块用于解码解析所述DTMB信号的传输流，生成广播电视节目的视音频数据；
    所述第二控制器用于执行用户播放指令，将所述视音频数据传输至所述输出模块进行播放，以及执行应急指令，将所述应急内容传输至所述输出模块进行播放；所述应急指令的优先级高于所述用户播放指令；
    所述第二控制器在执行所述应急指令前，判断DTMB机顶盒的的当前状态，当所述DTMB机顶盒的当前状态为待机状态，上电和 启动所述输出模块；当所述DTMB机顶盒的当前状态为播放状态时，实时播放所述应急内容。
  2. 根据权利要求1所述的被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，还包括：应急内容转换模块；
    所述应急内容转换模块，与所述第一控制器相连接，用于在所述第一控制器控制下，将接收到的所述应急内容按照所述应急指令中的播放类型进行匹配和转换。
  3. 根据权利要求1所述的被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，还包括：第一存储器；
    所述第一存储器，与所述第一控制器相连接，用于存储所述应急指令以及所述应急内容。
  4. 根据权利要求1所述的被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，还包括：第二存储器；
    所述第二存储器，与所述第二控制器相连接，用于存储在播放应急广播前所播放的广播电视节目的DTMB频点、音频PID以及视频PID。
  5. 根据权利要求4所述的被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，所述第二控制器用于执行所述应急指令前，判断所述DTMB机顶盒的当前状态，若所述DTMB机顶盒为播放状态，保存原播放广播电视节目的DTMB频点、音频PID以及视频PID，实时播放所述应急内容，当应急广播结束后恢复所述原播放广播电视节目。
  6. 根据权利要求1所述的被FM-CDR唤醒应急广播的DTMB机顶盒，其特征在于，还包括：电源控制器；
    所述电源控制器与所述第二控制器相连接；
    所述第二控制器在执行应急指令前，控制所述电源控制器上电和启动外接设备；所述外接设备为电视机、显示屏、音箱或喇叭。
  7. 根据权利要求1所述的被FM-CDR唤醒应急广播的DTMB 机顶盒，其特征在于，所述FM-CDR接收解调模块的主芯片为海尔Hi5216。
PCT/CN2023/107000 2023-07-12 2023-07-12 被fm-cdr唤醒应急广播的dtmb机顶盒 WO2024002380A2 (zh)

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