Method for realizing live broadcast of television news by using wireless communication network

Abstract

The invention relates to a method for realizing live broadcast of television news by using a wireless communication network. The method comprises the following steps of: establishing wireless connection with a media server by dialing; acquiring images and sound; encoding audio and video data; loading destination address information into the encoded data information to generate an IP data packet; performing real-time transmission through the wireless communication network; decoding the audio and video data information received by the media server; and converting the decoded information into an SDI signal and outputting the signal to a studio for playing. Compared with the prior art, the method has the advantages of replacing the majority of the functions of a satellite broadcasting vehicle and breaking through the limitation of time and region, along with low live broadcast cost and less limitation, and the method has the advantages that: no matter where and when a news event occurs, journalists can immediately rush to the field to carry out live video broadcast; and by the method, audiences can very easily participate in television media propagation, the television media has obvious propagation advantage, and the audiences can participate in the live program broadcast by using mobile phones, so that the video propagation advantages of the television media and the interaction of the audiences for immediately participating in the programs are shown.

Description

technical field [0001] The present invention relates to a method for realizing live broadcast of TV news by using a wireless communication network, which is a method of live news broadcasting, which transmits data streams to a media server at a designated address through a wireless communication network and the Internet, and reports on-site news at the first time. This method not only guarantees the quality of broadcast programs, but also greatly saves the high cost of using OB vans and renting satellites. Background technique [0002] The existing live broadcasts of news, sports, and large-scale events all use OB vans, which transmit the programs back to TV stations for broadcasting through microwave or satellite channels. Although direct reports can be realized on the spot, there are also many disadvantages. [0003] First, the cost of live broadcast equipment is high and there are many influencing factors. Live broadcast news reporters mainly use satellite OB vans or mic...

AI Technical Summary

Problems solved by technology

[0002] The existing live broadcast of news, sports, and large-scale events all use OB vans, and the programs are transmitted back to the TV station for broadcast through microwave or satellite channels. Although direct reporting on the spot can be achieved, there are still many disadvantages

[0003] First, the cost of live broadcast equipment is high and there are many influencing factors

Live broadcast news reporters mainly use satellite OB vans or microwave launch vehicles when they go out for interviews. The purchase cost of vehicles is high, often tens of millions. Powerful channels may have their own OB vans, but more channels use All of them are OB vans shared by multiple channels and departments in the station, which is extremely inconvenient to call

Moreover, when the satellite OB vehicle is in use, the team is relatively large. In addition to reporters and cameras, many technical personnel such as broadcast directors and editors are also required. Strict equipment debugging and preparation are required before the live broadcast, which takes a long time. For breaking news , it is difficult for reporters to grab the first scene

OB vans are subject to a lot of space restrictions, and narrow spaces or large geographical spans are not suitable for live broadcasting

Therefore, when Minsheng News broadcasts live, it has more restrictions on the time, region, and content of the live broadcast topics. Generally, it chooses predictable news events that occur locally (the city where the channel is located) when the program is broadcast. , such as live broadcasting astrological spectacle on the central square of the city, or live broadcasting the travel situation of citizens on the "car-free day", etc., but it is difficult to respond quickly to sudden news events

[0004] Second, the response speed of the live broadcast is slow, and the live TV broadcast cannot reflect the advantages of the media

In order to make up for the regret that there is only sound but no picture, the program editor will choose the photos of the reporters on the spot, or spread the "earlier pictures" to deal with the live broadcast. The pictures are used for the live broadcast of the next period of the program, or for detailed reports in the next day's program. The limitation of the equipment makes the TV live broadcast a pity, and the visual communication advantages of the TV media cannot be fully reflected.

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