Method for waking up emergency broadcast through digital frequency modulation, IPTV set top box and system

A technology of emergency broadcasting and digital frequency modulation, applied in the direction of broadcasting circuit devices, broadcasting specific applications, electrical components, etc.

Inactive Publication Date: 2021-04-20
合肥飞光妙源信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for waking up emergency broadcasting via digital frequency modulation, an IPTV

Method used

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  • Method for waking up emergency broadcast through digital frequency modulation, IPTV set top box and system
  • Method for waking up emergency broadcast through digital frequency modulation, IPTV set top box and system
  • Method for waking up emergency broadcast through digital frequency modulation, IPTV set top box and system

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Embodiment Construction

[0076] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0077] Example Figure 1-3 As shown, the method, IPTV set-top box and system for waking up emergency broadcasting via digital frequency modulation, wherein,

[0078] In one aspect of this embodiment, a method for waking up an emergency broadcast via digital frequency modulation is provided, including the following steps:

[0079] (1) When the IPTV set-top box 400 is turned off or on standby or playing a program, the FM-CDR receiving module 1 receives the FM-CDR broadcast signal, demodulates and decodes the FM-CDR data, and then decrypts it by the FM-CDR decryption and analysis module 2, Analyze FM-CDR data to get emergency messages;

[0080] Emergency messages, including emergency instructions and emergenc...

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Abstract

The invention discloses a method for waking up emergency broadcast through digital frequency modulation, an IPTV set top box and a system, the method comprises the following steps: an FM-CDR receiving module and an FM-CDR decryption analysis module obtain emergency messages from an FM-CDR broadcast signal, the emergency messages comprise an emergency instruction and emergency information, and the emergency information is a receiving parameter of an emergency broadcast IPTV program; the IPTV receiving module obtains an IPTV program from the IPTV broadcast television signal; the first control module receives the emergency message, executes an emergency instruction, awakens the IPTV set top box in advance in a necessary time period, and transmits the emergency message to the main control module for receiving program video and audio data; and the main control module sets receiving parameters of the second IPTV receiving module according to the emergency information, converts the emergency broadcast content into media types, synthesizes the media types and outputs the media types. According to the invention, the emergency message in the FM-CDR broadcast signal is detected and received in real time, and the IPTV set top box is awakened to carry out emergency broadcast.

Description

technical field [0001] The invention belongs to the technical field of emergency broadcasting, and in particular relates to a method for waking up emergency broadcasting through digital frequency modulation, an IPTV set-top box and a system. Background technique [0002] The interactive Internet TV IPTV set-top box receives, demodulates, demultiplexes and decodes the IPTV radio and television signals, obtains radio and television program data, and outputs them to the TV for playback. When natural disasters or social public events occur, the emergency broadcast management platform sends emergency messages to IPTV set-top boxes. When the IPTV set-top box is turned off, standby or playing programs, there is a problem of how to respond to emergency messages and play emergency broadcasts. [0003] The existing emergency broadcast system inserts emergency messages into IPTV radio and television signals, and the IPTV set-top box receives and separates the emergency messages. The d...

Claims

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Application Information

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IPC IPC(8): H04N21/426H04N21/435H04N21/439H04N21/4402H04N21/443H04N21/462H04N21/488H04N21/61H04N21/643H04N21/81H04H20/59H04H20/46
Inventor 李晓飞
Owner 合肥飞光妙源信息科技有限公司
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