Digital public broadcasting system based on IP network

A technology of public broadcasting and IP network, applied in the field of digital public broadcasting system, it can solve the problems of inconvenience for people to use and the system cannot work well, and achieve the effect of improving flexibility

Inactive Publication Date: 2009-12-02
FIRST AUDIO MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing IP-based network audio transmission technology, there is generally only one network audio server. If the data of the server needs to be broadcast, it must first be connec

Method used

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  • Digital public broadcasting system based on IP network

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Embodiment Construction

[0015] The present invention will be described in further detail below in combination with specific embodiments.

[0016] Referring to the accompanying drawings, the digital public broadcasting system based on the IP network of the present invention includes an audio playback terminal radio relay server 1, a voice collection playback server 2, a PC music player 3, an Mp3 / Mp4 player 4, a router 5, and a digital audio system. Terminal 6, power amplifier 7, speaker 8; the radio relay server encodes and converts the voice signal of the radio station into a digital signal and sends it to the router 5, the voice collection and playback server 2 collects the live voice signal and converts the voice signal into a digital signal, and the PC music player Directly encode the audio signal played in the computer and then convert it to a digital signal. The Mp3 / Mp4 player reads the stored audio signal and converts the voice signal into a digital signal. These audio playback terminals encode ...

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PUM

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Abstract

The invention discloses a digital public broadcasting system based on an IP network, comprising at least two audio play terminals, a switch, a digital audio terminal, a power amplifier and a sound box. The audio play terminals are used for playing audio data, coding an audio control signal and a played audio signal and then sending the signals to the digital audio terminal by the switch; the digital audio terminal is used for receiving the audio control signal and the audio signal transmitted by the switch, and then converting the audio control signal and the audio signal to analog signals to be sent to the power amplifier; and the power amplifier is used for amplifying the amplitude of the analog signals to drive the sound box to play voice. The invention is based on the existing Ethernet network, utilizes the existing network to transmit the control signal and the audio signal, not only solves the problems of construction, long distance transmission, audio effect, and the like, and has greater advantages in the aspects of system upgrade and stability. The invention is the network broadcasting service system based on all digital network type, and can be used for inputting voice signals into a broadcasting system in different locations so as to enhance the flexibility of the broadcasting system.

Description

【Technical field】 [0001] The present invention relates to a digital broadcasting system, in particular to a digital public broadcasting system based on an IP network. 【Background technique】 [0002] Broadcasting can be divided into radio broadcasting and public broadcasting. Public broadcasting is widely used in venues, gymnasiums, shopping malls, communities, schools and other places. Public broadcasting provides people with news information, background music, etc. in normal times, and provides a command platform to command evacuation personnel in case of emergency. Public broadcasting is closely related to our life and is an indispensable electronic system in daily life. [0003] Public broadcasting can be divided into traditional analog type, digital control type, all-digital private network type and all-digital network type. The traditional analog and digital control types have construction inconvenience, long-distance transmission problems, power distribution problems...

Claims

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Application Information

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IPC IPC(8): H04L12/18
Inventor 何欢潮李中华
Owner FIRST AUDIO MFG CO LTD
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