CN207442859U - Broadcast singal wireless transmitting system - Google Patents
Broadcast singal wireless transmitting system Download PDFInfo
- Publication number
- CN207442859U CN207442859U CN201720974968.3U CN201720974968U CN207442859U CN 207442859 U CN207442859 U CN 207442859U CN 201720974968 U CN201720974968 U CN 201720974968U CN 207442859 U CN207442859 U CN 207442859U
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- China
- Prior art keywords
- signal
- audio
- wireless
- modulation
- receiver
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Radio Relay Systems (AREA)
- Transmitters (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
This application discloses a kind of broadcast singal wireless transmitting system, including a set of audiogenic device and more set field devices；Audiogenic device is used to export audio modulation signal；Field device includes second wireless singal receiver, audio-frequency power amplifier, audio player, secondary signal modulation generator；Second wireless singal receiver is demodulated for receiving audio modulation signal and is reduced to audio signal；Audio-frequency power amplifier connects wireless signal receiver and audio player, the audio signal of wireless signal receiver reduction generation is carried out power amplification and is transmitted to audio player to play out；Secondary signal modulation generator connection wireless signal receiver carries out secondary modulation amplification to the audio signal of wireless signal receiver reduction generation, generates and exports secondary audio modulation signal.The application realizes that the wireless overlength distance of radio broadcasting signal transmits using the relatively low signal generator of transmission power, reduces equipment cost, avoids causing signal contamination to use environment.
Description
Technical field
This application involves signal transmission technology fields, relate in particular to a kind of broadcast singal wireless transmitting system.
Background technology
In broadcast technology field, it usually needs go audio signal transmission to place farther out, according to transmission medium
Difference is broadly divided into wireless transmission and wire transmission both of which.Wherein, existing wireless signals broadcast Transmission system mainly by
The equipment group such as audio signal source, wireless signal generator, wireless signal receiver, audio-frequency power amplifier and audio player
Into.Wherein, the audio signal that audio signal source generates is modulated and amplified by wireless signal generator connection audio signal source
Each wireless signal receiver is sent to by antenna afterwards；Wireless signal receiver is used to receive wireless modulated signals and be solved
Tune is reduced into audio signal, and output to audio plays after audio-frequency power amplifier carries out the audio signal of the reduction power amplification
Device is played out by audio player in working site.The problems of this structure is：It is needing to carry out overlength distance
In the case of signal transmission, in order to which wireless signal is overcome to pass through the loss that various barriers occur during space propagation,
Wireless signal generator must configure sufficiently large transmission power, on the one hand cause the equipment cost of wireless signal generator in itself
High, larger signal power can also adversely affect ambient enviroment, and high power signals generator makes
Apply using license with radio administration must be arrived, formality flow is also very cumbersome.Therefore, how to develop a kind of new
Broadcast singal wireless transmitting system, the signal generator that transmission power can be used relatively low use the wireless super long distance of broadcast singal
From transmission, equipment cost is reduced, avoids causing signal contamination to use environment, without handling use to radio administration's application
The formality of license is that those skilled in the art need the direction studied.
Utility model content
This application provides a kind of broadcast singal wireless transmitting system, the signal generator that transmission power can be used relatively low
It realizes the wireless overlength distance transmission of radio broadcasting signal, reduces equipment cost, avoid causing signal contamination to use environment.
The specific technical solution that it is used is as follows：
A kind of broadcast singal wireless transmitting system, including a set of audiogenic device and more set field devices；The audiogenic device
It is installed in broadcasting studio, for exporting audio modulation signal；The field device includes second wireless singal receiver, audio work(
Rate amplifier, audio player, secondary signal modulation generator；The second wireless singal receiver is used to receive voice modulation
Signal is demodulated and is reduced to audio signal；The audio-frequency power amplifier connection second wireless singal receiver and audio are broadcast
It puts device, the audio signal of wireless signal receiver reduction generation is carried out power amplification and is transmitted to audio player to broadcast
It puts；The secondary signal modulation generator connection wireless signal receiver believes the audio of wireless signal receiver reduction generation
Number amplification is modulated, generates and export audio modulation signal.
By using this technical solution：Secondary signal modulation generator is set to carry out two to the audio signal of demodulation reduction
Secondary modulation is sent, and is realized and is carried out relaying enhancing and forwarding to what signal source exported with field device, is realizing similary pass as a result,
The output power of broadcast signal source is significantly reduced in the case of defeated distance, so as to reduce the cost of signal generator, is avoided pair
Use environment causes signal contamination, and without applying, using license, simplifying workflow to radio administration.
Wherein, in above-mentioned broadcast singal wireless transmitting system：The audiogenic device includes audio signal source and the first letter
Number modulation generator；The audio signal source generates audio signal；The first signal modulation generator connection audio signal source,
Amplification is modulated to the audio signal of audio signal source generation, exports audio modulation signal.
Preferably, the audiogenic device further includes the first wireless signal receiver, first wireless signal receiver
The first signal modulation generator is connected, for receiving audio modulation signal, is demodulated and is reduced to audio signal and exports to the
One signal modulation generator.
By using this technical solution：The voice modulation for receiving to be exported by audiogenic device with the first wireless signal receiver
Signal and the secondary audio modulation signal of field device output, are further reduced the transmission power intensity that signal source must configure.
It is further preferred that in above-mentioned broadcast singal wireless transmitting system：Each set field device is with audiogenic device in straight
The equidistant arrangement of line.
Compared with prior art, the application is simple in structure, easily prepared.It is real using the relatively low signal generator of transmission power
The wireless overlength distance transmission of existing radio broadcasting signal, reduces equipment cost, avoids causing signal contamination to use environment.
Description of the drawings
The application is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram block diagram of the embodiment of the present application 1；
Fig. 2 is the structure diagram of audiogenic device in the embodiment of the present application 1；
Fig. 3 is the structure diagram of field device in the embodiment of the present application 1.
Each reference numeral and component names correspondence are as follows：
1st, audiogenic device；2nd, field device；11st, audio signal source；12nd, the first signal modulation generator；13rd, first is wireless
Signal receiver；21st, second wireless singal receiver；22nd, audio-frequency power amplifier；23rd, audio player；24th, secondary signal
Modulation generator.
Specific embodiment
In order to illustrate more clearly of the technical solution of the application, the application is further described below in conjunction with attached drawing.
It is embodiments herein 1 as shown in Figs. 1-3：
A kind of broadcast singal wireless transmitting system, including a set of audiogenic device 1 and more set field devices 2.
Wherein, audiogenic device 1 is installed on broadcasting studio, for exporting audio modulation signal.
The audiogenic device 1 includes audio signal source 11, the first signal modulation generator 12 and the first reception of wireless signals
Device 13.The audio signal source 11 generates audio signal；The first signal modulation generator 12 connects audio signal source 11, right
The audio signal that audio signal source 11 generates is modulated amplification, exports audio modulation signal.First reception of wireless signals
Device 13 connects the first signal modulation generator 12, for receiving audio modulation signal, is demodulated and is reduced to audio signal and defeated
Go out to the first signal modulation generator 12.
More set field devices 2 are further included, each field device 2 is respectively arranged in broadcast playback place.In optimal situation
Under, keep each set field device 2 and the linearly equidistant arrangement of audiogenic device 1.I.e.：Audiogenic device 1 and first set scene
The air line distance of equipment 2, equal to the air line distance between first set field device 2 and second set of field device 2, equal to second set
Air line distance ... between field device 2 and the 3rd set of field device 2 and so on.
The field device 2 include second wireless singal receiver 21, audio-frequency power amplifier 22, audio player 23,
Secondary signal modulation generator 24.Wherein, the second wireless singal receiver 21 is solved for receiving audio modulation signal
Tune is reduced to audio signal；The audio-frequency power amplifier 22 connect second wireless singal receiver 21 and audio player 23,
The audio signal of second wireless communication receiver 21 reduction generation is carried out power amplification and is transmitted to audio player 23 to broadcast
It puts；The secondary signal modulation generator 24 connects wireless signal receiver 21, to the reduction generation of wireless signal receiver 21
Audio signal carries out secondary modulation amplification, generates and exports secondary audio modulation signal.
In practice, the course of work is as follows：
Second wireless singal receiver 21 in the field device 2 nearest apart from audiogenic device 1 is received from source of sound first to be set
The audio modulation signal of standby 1 output, is demodulated and is reduced into audio signal, the second wireless singal receiver 21 is simultaneously by the sound
Frequency signal is sent in audio-frequency power amplifier 22 and secondary signal modulation generator 22；The audio signal is in Audio power amplifier
Power amplification is carried out in device 22 and exports the live play for audio player 23, realizing broadcast singal；It is modulated in secondary signal
Audio modulation signal is modulated into generator 22 again and is exported, is achieved in using field device 2 as to broadcast radio
The relaying enhancing and forwarding of audio model.And so on, it is with this hand-in-hand mode, audio signal transmission is live to distal end
In equipment 2.
The above is only the specific embodiment of the application, but the protection domain of the application is not limited thereto, any ripe
The technical staff of art technology is known in technical scope disclosed in the present application, the change or replacement that can be readily occurred in should all be contained
It covers within the protection domain of the application.The protection domain of the application is subject to the protection domain of claims.
Claims (4)
1. a kind of broadcast singal wireless transmitting system, it is characterised in that：Including a set of audiogenic device（1）With more set field devices
（2）；
The audiogenic device（1）It is installed in broadcasting studio, for exporting audio modulation signal；
The field device（2）Including second wireless singal receiver（21）, audio-frequency power amplifier（22）, audio player
（23）, secondary signal modulation generator（24）；
The second wireless singal receiver（21）For receiving audio modulation signal, demodulated and be reduced to audio signal；
The audio-frequency power amplifier（22）Connect second wireless singal receiver（21）And audio player（23）, to the second nothing
Line signal receiver（21）The audio signal of reduction generation carries out power amplification and is transmitted to audio player（23）It plays out；
The secondary signal modulation generator（24）Connect wireless signal receiver（21）, to wireless signal receiver（21）Reduction
The audio signal of generation is modulated amplification, generates and exports audio modulation signal.
2. broadcast singal wireless transmitting system as described in claim 1, it is characterised in that：The audiogenic device（1）Including audio
Signal source（11）With the first signal modulation generator（12）；The audio signal source（11）Generate audio signal；First letter
Number modulation generator（12）Connect audio signal source（11）, to audio signal source（11）The audio signal of generation, which is modulated, puts
Greatly, audio modulation signal is exported.
3. broadcast singal wireless transmitting system as claimed in claim 2, it is characterised in that：The audiogenic device（1）Further include
One wireless signal receiver（13）, first wireless signal receiver（13）Connect the first signal modulation generator（12）, use
In receiving audio modulation signal, demodulated and be reduced to audio signal and export to the first signal modulation generator（12）.
4. the broadcast singal wireless transmitting system as described in Claims 2 or 3, it is characterised in that：Each set field device（2）With
Audiogenic device（1）Linear equidistant arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974968.3U CN207442859U (en) | 2017-08-07 | 2017-08-07 | Broadcast singal wireless transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974968.3U CN207442859U (en) | 2017-08-07 | 2017-08-07 | Broadcast singal wireless transmitting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207442859U true CN207442859U (en) | 2018-06-01 |
Family
ID=62300813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720974968.3U Expired - Fee Related CN207442859U (en) | 2017-08-07 | 2017-08-07 | Broadcast singal wireless transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207442859U (en) |
-
2017
- 2017-08-07 CN CN201720974968.3U patent/CN207442859U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20210807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |