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Method and device for digital television disaster early warning

A technology of digital TV and disaster, applied in the field of TV, can solve problems such as untimely early warning

Active Publication Date: 2020-10-02
SHENZHEN TCL DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method and device for digital TV disaster early warning, aiming to solve the technical problem of untimely early warning in the prior art

Method used

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  • Method and device for digital television disaster early warning
  • Method and device for digital television disaster early warning
  • Method and device for digital television disaster early warning

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Embodiment Construction

[0046] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] refer to figure 1 , the first embodiment of the present invention provides a digital television disaster early warning method, the method comprising:

[0048] S10: Receive the TV program transport stream sent by the information sending end;

[0049] It should be noted that the execution subject of the method in this embodiment is the controller of the digital television.

[0050] It can be understood that the information sending end is a digital TV transmission relay station or an operator server, of course, it can also be other devices with similar functions, which is not limited in this embodiment.

[0051] In a specific implementation, the TV program transport stream (TS stream) has a program mapping table PMT table, and a descriptor containing disaster warning subtitles can be added to the program mapping...

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Abstract

The invention discloses a digital TV disaster early warning method comprising the following steps: receiving a TV program transport stream sent by an information emission end; extracting a corresponding program number and disaster early warning captions from the TV program transport stream; obtaining program frames according to the program number, embedding the disaster early warning captions into the program frames, and displaying the program frames with the embedded disaster early warning captions on a display interface. The invention also discloses a digital TV disaster early warning device; the method receives the TV program transport stream sent by the information emission end, extracts the corresponding program number and disaster early warning captions from the TV program transport stream, obtains the program frames according to the program number, embeds the disaster early warning captions into the program frames, and displays the program frames with the embedded disaster early warning captions on the display interface. By using the method and device, the information emission end needs not to decode the program, add information, encode the program and output the program to users, thus timely carrying out disaster early warning prompting.

Description

technical field [0001] The invention relates to the field of television technology, in particular to a method and device for digital television disaster early warning. Background technique [0002] Earthquakes, floods, typhoons and other natural disasters will have a huge impact on people's lives and property. Although the prediction of natural disasters is difficult, the early warning of disasters is feasible. Let’s take an earthquake as an example. At the moment when the earthquake arrives, because the propagation speed of the seismic wave is far less than that of the radio wave (the distance difference is 3.5 kilometers, and the arrival time of the seismic wave will differ by about 1 second), after the earthquake bureau detects the earthquake, there will often be Dozens of seconds to notify the public. Although it is a short time of tens of seconds, it is possible to save the lives of tens of thousands of people in the face of a major earthquake. [0003] There are man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/431H04N21/488H04N21/81
CPCH04N21/4314H04N21/4882H04N21/8126
Inventor 王龙轩
Owner SHENZHEN TCL DIGITAL TECH CO LTD
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