Method for sending emergency broadcast by digital TV and corresponding digital TV terminal
A technology of digital TV terminal and emergency broadcasting, applied in broadcasting specific applications, electrical components, selective content distribution, etc., can solve the problems of limited system coverage area and high cost, and achieve the effects of good timeliness, large coverage and timely information
Active Publication Date: 2015-07-29
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology
However, the existing system has the defects of limited coverage area and high cost
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[0024] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0025] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0026] The digital TV terminal in the present invention may specifically be a digital set-top box and a display device. In order to reduce costs and simplify the circuit structure, the display device may be a TV monitor. In order to be able to respond to various types of emergency broadcasts, the digital TV terminal in the present invention also integrates an alarm with a USB interface and an LED display. The control unit in the digital set-t...
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The invention discloses a method for sending emergency broadcast by a digital television (TV), and a corresponding digital TV terminal, belonging to the technical field of the digital TV, and aiming at providing a method for sending emergency broadcast by the digital TV, which is wide in distribution range and low in cost, and a corresponding digital TV terminal. The invention has the technical key points that the method comprises the steps of: step 1, establishing a data table at the front end of the digital TV, wherein the data table comprises emergency broadcast state information, play time and emergency broadcast acquisition information; step 2, sending the data table at the front end of the digital TV; step 3, using the digital TV terminal to receive the data table and resolving the data table to obtain the emergency broadcast state information, the play time and the emergency broadcast acquisition information; and step 4, if the emergency broadcast state information is in a trigger state, using the digital TV terminal to download the emergency broadcast according to the emergency broadcast acquisition information, and playing the emergency broadcast; and when the play time of the emergency broadcast reaches the play time in the data table, stopping the broadcast of the digital TV terminal, and the like.
Description
technical field [0001] The invention relates to the technical field of digital television, in particular to a method for sending emergency broadcast by using digital television and a digital television terminal with emergency broadcast response function. Background technique [0002] At present, natural disasters occur frequently in various countries, and emergencies continue to increase. When natural disasters or major emergencies occur, more effective channels are needed to inform the relevant people, so as to reduce various losses. The emergency broadcast transmission system in the prior art needs special equipment to realize, and generally includes an early warning center and terminals scattered in various fortified areas, and the early warning center communicates with each terminal through a wireless network. However, the existing systems have the defects of limited coverage area and high cost. Contents of the invention [0003] The object of the present invention is...
Claims
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IPC IPC(8): H04N21/23H04N21/238H04N21/434H04N21/488H04H20/59
Inventor 杨巍张雷鸣陈启均曾令刚周旭成胡华君
Owner SICHUAN CHANGHONG ELECTRIC CO LTD