Timing broadcasting method and device of digital broadcasting system

Abstract

The invention discloses a timing broadcasting method of a digital broadcasting system, comprising the following steps: deploying a file server in a broadcasting system server, and sending timing broadcasting task information to broadcasting equipment by the broadcasting system server through an instruction channel between the file server and the broadcasting equipment; the broadcast device downloading a file through the file server deployed in the broadcast system server; receiving regular broadcast task information of a broadcast device, analyzing the received regular broadcast task information to obtain corresponding to-be-downloaded file information, checking a local memory, carrying out consistency verification on downloaded files, filtering downloaded file data in all to-be-downloadedfile information, and downloading other files by the broadcast device through a file server; and the broadcasting equipment carrying out time synchronization with the broadcasting system server by using a network time protocol (Network Time Protocol), the broadcasting equipment judging whether the playing starting time is up or not according to a timing broadcasting task, and if so, the broadcasting equipment reading corresponding file contents according to a preset sequence and decoding and playing the file contents.

Description

technical field [0001] The invention relates to the technical field of digital broadcasting, in particular to a method and device for timing broadcasting of a digital broadcasting system. Background technique [0002] In the digital broadcasting system, the server generally sends the digital audio stream to the broadcasting equipment through the network, and the broadcasting equipment receives the digital audio stream and decodes, plays, and amplifies the sound to realize the broadcasting service. In this way, in the local area network, the network connection between each broadcast device and the server is stable, which can ensure the synchronization of playback between broadcast devices. However, when the digital broadcasting system is deployed on the WAN, due to the insufficient bandwidth of the access network of the broadcasting equipment and the impact of network jitter, the broadcast may experience stuck problems. The general solution is to buffer a certain number of a...

AI Technical Summary

Problems solved by technology

However, when the digital broadcasting system is deployed on a wide area network, due to the insufficient bandwidth of the access network of the broadcasting equipment, network jitter, etc., the broadcasting may appear stuck.

The general solution is to buffer a certain number of audio frames in the broadcasting device first, and then start decoding and playing, but this will also lead to the problem of out-of-sync playback between different broadcasting devices

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