CN101594237A - The digital public broadcasting system of IP based network - Google Patents
The digital public broadcasting system of IP based network Download PDFInfo
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- CN101594237A CN101594237A CNA2008100284027A CN200810028402A CN101594237A CN 101594237 A CN101594237 A CN 101594237A CN A2008100284027 A CNA2008100284027 A CN A2008100284027A CN 200810028402 A CN200810028402 A CN 200810028402A CN 101594237 A CN101594237 A CN 101594237A
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Abstract
The invention discloses a kind of digital public broadcasting system of IP based network, this system comprises: at least two audio-frequency playing terminals, switch, digital audio terminal, power amplifier, audio amplifier, wherein: audio-frequency playing terminal is used for playing audio-fequency data, and the coding audio signal of audio control signal and broadcast is sent to digital audio terminal by switch then; Digital audio terminal is used for audio control signal and the audio signal that desampler transmits, and audio control signal and audio signal is converted to analog signal sends to power amplifier; Power amplifier is used for that analog signal amplitude is amplified the driving audio amplifier and plays voice.The present invention is based on the existing Ethernet network, utilize existing Network Transmission control signal and audio signal, not only solve construction, long Distance Transmission, problems such as audio frequency effect, and system upgrade and stable aspect bigger advantage is arranged.Be based on the broadcast service system of full-digital network type design, utilize the present invention to improve the flexibility of broadcast system in different places to the broadcast system input speech signal.
Description
[technical field]
The present invention relates to digit broadcasting system, relate in particular to a kind of digital public broadcasting system of IP based network.
[background technology]
Broadcasting can be divided into the radio broadcasting and the public broadcasting in radio station.Public broadcasting in the meeting-place, place such as gymnasium, market, sub-district, school all is widely used.Public broadcasting for people provide news information, background music etc., and when critical thing occurring, provides maneuvering platform at ordinary times, the command evacuating personnel, and public broadcasting and our life are closely bound up, are electronic systems indispensable in the daily life.
Public broadcasting can be divided into traditional analogue type, digital control type, digital private network type and full-digital network type.Traditional analogue type and digital control type exist construction inconvenience, long Distance Transmission problem, power division problem, transmitted in both directions problem etc., and digital private network type cost is very high.The full-digital network type is based on ethernet network, utilizes existing Network Transmission control signal and audio signal, solved problems such as constructional difficulties, long Distance Transmission, audio frequency effect, and the upgrading of system all has very big advantage with stability.
But in the existing IP-based network audio transmission techniques, generally has only a network audio server, if being arranged, its data in server need broadcast, must will be connected to this earlier transmits above unique network audio server, when the network audio server goes wrong, whole system just can't well be worked, and brings very big inconvenience for undoubtedly people's use.
[summary of the invention]
The present invention is directed to the above-mentioned defective of prior art, a kind of digital public broadcasting system of IP based network is provided, in the public broadcasting network, can play broadcasting everywhere.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of digital public broadcasting system of IP based network, this system comprises: at least two audio-frequency playing terminals, switch, digital audio terminal, power amplifier, audio amplifier, wherein:
Audio-frequency playing terminal is used for playing audio-fequency data, and the audio signal of audio control signal and broadcast is sent to digital audio terminal by switch then with encoding;
Digital audio terminal is used for audio control signal and the audio signal that desampler transmits, and audio control signal and audio signal is converted to analog signal sends to power amplifier;
Power amplifier is used for that analog signal amplitude is amplified the driving audio amplifier and plays voice.
Wherein, described audio-frequency playing terminal is PC music player, radio station relaying server, voice collecting Play Server, Mp3/Mp4 player.
Wherein, described PC music player, radio station relaying server, voice collecting Play Server, Mp3/Mp4 player are integrated in one or are separate.
As can be seen from the above technical solutions, the present invention has at least two audio rendition managers, behind the audio rendition manager audio plays program audio signal distributed by switch and send on the network, therefore can be at different place input speech signals to broadcast system, the flexibility of raising system greatly realizes having computer just can realize the real-time broadcasting of voice.
[description of drawings]
Accompanying drawing is the system block diagram of one embodiment of the invention.
[embodiment]
The present invention is further detailed explanation below in conjunction with embodiment.
Shown in accompanying drawing, the digital public broadcasting system that the present invention is based on IP network comprises voice playing playback terminal radio station relaying server 1, voice collecting Play Server 2, PC music player 3, Mp3/Mp4 player 4, router five, digital audio terminal 6, power amplifier 7, audio amplifier 8; The radio station relaying server is converted to digital signal with the radio station speech signal coding and sends to router five, voice collecting Play Server 2 collection site voice signals also are converted to digital signal with voice signal, and the PC music player is directly with the audio-frequency signal coding play in computer conversion digital signal again, the Mp3/Mp4 player is converted to digital signal with voice signal after the audio signal of storing is read, these audio-frequency playing terminals send to digital audio terminal 6 decodings with audio-frequency signal coding packing back by router five, digital demodulation signal is become analog signal, and the simulated audio signal that power amplifier comes out demodulation amplifies and is transported to audio amplifier again and plays.
Above-mentioned voice playing playback terminal radio station relaying server, voice collecting Play Server, PC music player, the Mp3/Mp4 player can combine in a machine, can also be separate multiple servers.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (3)
1, a kind of digital public broadcasting system of IP based network is characterized in that, this system comprises: at least two audio-frequency playing terminals, switch, digital audio terminal, power amplifier, audio amplifier, wherein:
Audio-frequency playing terminal is used for playing audio-fequency data, and the audio signal of audio control signal and broadcast is sent to digital audio terminal by switch then with encoding;
Digital audio terminal is used for audio control signal and the audio signal that desampler transmits, and audio control signal and audio signal is converted to analog signal sends to power amplifier;
Power amplifier is used for that analog signal amplitude is amplified the driving audio amplifier and plays voice.
2, the digital public broadcasting system of IP based network according to claim 1 is characterized in that: described audio-frequency playing terminal is PC music player, radio station relaying server, voice collecting Play Server, Mp3/Mp4 player.
3, the digital public broadcasting system of IP based network according to claim 2 is characterized in that: described PC music player, radio station relaying server, voice collecting Play Server, Mp3/Mp4 player are integrated in one or are separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100284027A CN101594237A (en) | 2008-05-30 | 2008-05-30 | The digital public broadcasting system of IP based network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100284027A CN101594237A (en) | 2008-05-30 | 2008-05-30 | The digital public broadcasting system of IP based network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101594237A true CN101594237A (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100284027A Pending CN101594237A (en) | 2008-05-30 | 2008-05-30 | The digital public broadcasting system of IP based network |
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| Country | Link |
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| CN (1) | CN101594237A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904734A (en) * | 2012-09-28 | 2013-01-30 | 天津市北海通信技术有限公司 | Network-based all-digital broadcasting system |
| CN103078929A (en) * | 2012-12-20 | 2013-05-01 | 广州普士全能音响设备有限公司 | Three-in-one audio set transmission control system |
| CN105515800A (en) * | 2015-12-15 | 2016-04-20 | 重庆三峡学院 | Internetwork based digital audio broadcasting system |
-
2008
- 2008-05-30 CN CNA2008100284027A patent/CN101594237A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904734A (en) * | 2012-09-28 | 2013-01-30 | 天津市北海通信技术有限公司 | Network-based all-digital broadcasting system |
| CN102904734B (en) * | 2012-09-28 | 2015-06-10 | 天津市北海通信技术有限公司 | Network-based all-digital broadcasting system |
| CN103078929A (en) * | 2012-12-20 | 2013-05-01 | 广州普士全能音响设备有限公司 | Three-in-one audio set transmission control system |
| CN105515800A (en) * | 2015-12-15 | 2016-04-20 | 重庆三峡学院 | Internetwork based digital audio broadcasting system |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091202 |