CN109687926A - A kind of broadcasting engineering transmitting antenna frequency modulation system - Google Patents
A kind of broadcasting engineering transmitting antenna frequency modulation system Download PDFInfo
- Publication number
- CN109687926A CN109687926A CN201811472665.7A CN201811472665A CN109687926A CN 109687926 A CN109687926 A CN 109687926A CN 201811472665 A CN201811472665 A CN 201811472665A CN 109687926 A CN109687926 A CN 109687926A
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- Prior art keywords
- module
- data
- signal
- frequency
- electrically connected
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
- H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
- H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
- H04H20/48—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a kind of broadcasting engineering transmitting antenna frequency modulation systems, it is related to broadcasting engineering correlative technology field, including data input module, data demultiplex module, data decompression module, data FM module, signal addition module, signal frequency shift module, signal side frequency filter module, power amplifier module and transmitting antenna, the output end of data input module is electrically connected with the input terminal that data demultiplex module, digitized program transmission is streamed to data and demultiplexes module by data input module, data demultiplex the output end of module and are electrically connected with the input terminal of data decompression module, data demultiplex the data information of module separation program transport streams, it obtains program data stream and is transmitted to data decompression module, the output end of data decompression module is electrically connected with the input terminal of data FM module, the present invention can be modulated simultaneously simultaneously with a set of transmitter Transmitting covers frequency modulation broadcasting program, and there is no interfering with each other between more transmitters, reduce equipment cost.
Description
Technical field
The present invention relates to broadcasting engineering correlative technology field, in particular to a kind of broadcasting engineering transmitting antenna frequency modulation system
System.
Background technique
Broadcast is essential a kind of mode for understanding information in daily life, and the development to broadcasting industry, also referred to as
Make broadcasting engineering, currently, the construction of broadcasting engineering is directed to, generally to expand based on broadcast coverage, to improve broadcast
Publicity degree.
When more transmitters of one transmitting station work at the same time, there is signal interference problem between each other.One transmitting
The signal that machine is emitted may feed back another input terminal, because there are nonlinear circuits inside transmitter, it is possible that hair
Raw mixing, intermodulation or self-excitation.So every transmitter requires especially to take shielding measure, cable and connector are all that failure is multiple
Position.Because high-frequency signal, which can't see, can not touch, and ubiquitous, fault condition is very complicated.More transmitters cannot
Direct common antenna, because respective frequency is different, it is necessary to common antenna again is synthesized later with multiplexer, so adding additional total
Cost and volume, and increase possible fault point.
Wireless frequency modulation broadcast is all after the voice signal of program is carried out frequency modulation modulation, to be broadcast in the way of wireless transmission
Out.Every suit wireless frequency modulation broadcast program that China's transmitting at present is broadcasted requires to correspond to a set of transmitter, increases equipment
Input cost.
It is therefore proposed that a kind of broadcasting engineering solved the above problems with transmitting antenna frequency modulation system it is necessary.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of broadcasting engineering transmitting antenna frequency modulation system, solves existing
Broadcasting engineering used device problem at high cost.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of broadcasting engineering transmitting antenna frequency modulation system, comprising: data input module, data demultiplex module, data decompression
Module, data FM module, signal addition module, signal frequency shift module, signal side frequency filter module, power amplifier module and transmitting day
Line；
The output end of the data input module is electrically connected with the input terminal that data demultiplex module, and the data input module will count
The program transmission of word is streamed to data and demultiplexes module.
Optionally, the data demultiplex the output end of module and are electrically connected with the input terminal of data decompression module, the number
According to the data information for demultiplexing module separation program transport streams, obtains program data stream and be transmitted to data decompression module.
Optionally, the output end of the data decompression module is electrically connected with the input terminal of data FM module, the number
The program data stream of acquisition is unziped it according to decompression module, and by the data transmission in network telephony after decompression to data frequency modulation
Module.
Optionally, the output end of the data FM module is electrically connected with the input terminal of signal addition module, the data
FM module calculates the corresponding modulating frequency of voice data, and every programs modulate different frequencies, and modulated signal is passed
Transport to signal addition module.
Optionally, the output end of the signal addition module is electrically connected with the input terminal of signal frequency shift module, the signal
Addition module is overlapped signal, is distributed on identical medium-frequency band signal.
Optionally, the output end of the signal frequency shift module is electrically connected with the input terminal of signal side frequency filter module, described
Medium-frequency band signal is moved high frequency band signal by signal frequency shift module, while producing two side frequency signals, using top
Frequency signal is as output band signal.
Optionally, the output end of the signal side frequency filter module is electrically connected with the input terminal of power amplifier module, the signal
Side frequency filter module filters out amplitude modulation fundamental frequency and lower side frequency signal in output band, retains upper side frequency signal, and it is same to obtain Polymera
When be modulated to Polymera composite signal total in frequency modulation broadcasting frequency range；
The output end of the power amplifier module is electrically connected with the input terminal of transmitting antenna.
Optionally, the power amplifier module includes pre-amplifying module, three times frequency module, recommends amplification module and output filtering
Module；
The output end of the signal side frequency filter module is electrically connected with the input terminal of pre-amplifying module；
The output end of the pre-amplifying module is electrically connected with the input terminal of three times frequency module；
The output end of the three times frequency module is electrically connected with the input terminal for recommending amplification module；
The output end for recommending amplification module is electrically connected with the input terminal of output filter module；
The output end of the output filter module is electrically connected with the input terminal of transmitting antenna.
Optionally, Polymera composite signal is transmitted to pre-amplifying module and put by the signal side frequency filter module
Greatly, amplified Polymera composite signal is further amplified after three times frequency module by recommending amplification module, the output filtering
Module emitted by transmitting antenna after inhibition spurious signal to the Polymera composite signal being further amplified.
(3) beneficial effect
The present invention provides a kind of broadcasting engineering transmitting antenna frequency modulation system, have it is following the utility model has the advantages that
(1), the present invention is by using modulation technology twice, can be modulated simultaneously with a set of transmitter and to emit more set frequency modulation wide
The method for broadcasting program.Broadcast program transport stream is obtained from derived digital signal by data input module, demultiplexing obtains specified turn
Program data stream is sent out, after compressing using digital solution, through data FM module and signal addition module this several programs one
It rises and is modulated within a medium-frequency band, passing through signal frequency shift module and signal side frequency filter module, in these programs
Frequency signal moves frequency modulation broadcasting frequency range together.
(2), the present invention can simultaneously amplify the carrier wave of more set frequency modulation broadcasting programs by power amplifier module, can use a set of hair
It penetrates machine while sending more than ten sets broadcast programs, with apparent cost advantage, there is no interfering with each other between more transmitters,
So without the concern for the stringent shielding problem between equipment.Radio frequency output signal directly arrives antenna, does not need multiplexer, so
It is small in size, high reliablity.
Detailed description of the invention
Fig. 1 is the block diagram of broadcasting engineering transmitting antenna frequency modulation system of the present invention.
Fig. 2 is the block diagram of power amplifier module of the present invention.
In figure: 1, data input module；2, data demultiplex module；3, data decompression module；4, data FM module；5,
Signal addition module；6, signal frequency shift module；7, signal side frequency filter module；8, power amplifier module；9, transmitting antenna；10, preposition
Amplification module；11, three times frequency module；12, amplification module is recommended；13, output filter module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection ",
Terms such as " fixations " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be mechanical connect
It connects；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Person implicitly includes one or more of the features.
The present invention provides a kind of broadcasting engineering transmitting antenna frequency modulation systems as shown in Figs. 1-2, including data to input
Module 1, data demultiplex module 2, data decompression module 3, data FM module 4, signal addition module 5, signal frequency shift module
6, signal side frequency filter module 7, power amplifier module 8 and transmitting antenna 9；
The output end of data input module 1 is electrically connected with the input terminal that data demultiplex module 2, and data input module 1 will digitize
Program transmission be streamed to data and demultiplex module 2.
As a kind of optional technical solution of the invention:
The output end that data demultiplex module 2 is electrically connected with the input terminal of data decompression module 3, and data demultiplex the separation section of module 2
The data information of program transport stream obtains program data stream and is transmitted to data decompression module 3.
As a kind of optional technical solution of the invention:
The output end of data decompression module 3 is electrically connected with the input terminal of data FM module 4, and data decompression module 3 will obtain
Program data stream unzip it, and by the data transmission in network telephony after decompression to data FM module 4.
As a kind of optional technical solution of the invention:
The output end of data FM module 4 is electrically connected with the input terminal of signal addition module 5, and the calculating of data FM module 4 is spoken
The corresponding modulating frequency of sound data, every programs modulate different frequencies, and modulated signal is transmitted to signal addition module
5。
As a kind of optional technical solution of the invention:
The output end of signal addition module 5 is electrically connected with the input terminal of signal frequency shift module 6, signal addition module 5 to signal into
Row superposition, is distributed on identical medium-frequency band signal.
As a kind of optional technical solution of the invention:
The output end of signal frequency shift module 6 is electrically connected with the input terminal of signal side frequency filter module 7, signal frequency shift module 6 will in
Frequent band signal moves high frequency band signal, while producing two side frequency signals, using upper side frequency signal as output frequency
Band signal.
As a kind of optional technical solution of the invention:
The output end of signal side frequency filter module 7 is electrically connected with the input terminal of power amplifier module 8, and signal side frequency filter module 7 filters out
Amplitude modulation fundamental frequency and lower side frequency signal in output band retain upper side frequency signal, obtain Polymera and are modulated to frequency modulation broadcasting simultaneously
Total Polymera composite signal in frequency range；
The output end of power amplifier module 8 is electrically connected with the input terminal of transmitting antenna 9.
As a kind of optional technical solution of the invention:
Power amplifier module 8 includes pre-amplifying module 10, three times frequency module 11, recommends amplification module 12 and output filter module 13；
The output end of signal side frequency filter module 7 is electrically connected with the input terminal of pre-amplifying module 10；
The output end of pre-amplifying module 10 is electrically connected with the input terminal of three times frequency module 11；
The output end of three times frequency module 11 is electrically connected with the input terminal for recommending amplification module 12；
The output end for recommending amplification module 12 is electrically connected with the input terminal of output filter module 13；
The output end of output filter module 13 is electrically connected with the input terminal of transmitting antenna 9.
As a kind of optional technical solution of the invention:
Polymera composite signal is transmitted to pre-amplifying module 10 and amplified by signal side frequency filter module 7, amplified more
Program composite signal is further amplified after three times frequency module 11 by recommending amplification module 12, and output filter module 13 is to further
The Polymera composite signal of amplification is emitted after carrying out inhibition spurious signal by transmitting antenna 9.
Working principle: data input module 1 obtains broadcast program transport stream from derived digital signal, and demultiplexing obtains specified
Program data stream is forwarded, after compressing using digital solution, through data FM module 4 and signal addition module 5 this few set section
Mesh is modulated to together within a medium-frequency band, and using signal frequency shift module 6 and signal side frequency filter module 7, these are saved
Purpose intermediate-freuqncy signal moves frequency modulation broadcasting frequency range together, and the load of more set frequency modulation broadcasting programs is simultaneously amplified by power amplifier module 8
Wave, and emitted using transmitting antenna 9.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in second feature
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact "up" or "down".
Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or tiltedly
Top, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section " and
" following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than
Two features.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of broadcasting engineering transmitting antenna frequency modulation system, which is characterized in that demultiplexed including data input module (1), data
Module (2), data decompression module (3), data FM module (4), signal addition module (5), signal frequency shift module (6), letter
Number side frequency filter module (7), power amplifier module (8) and transmitting antenna (9)；
The output end of the data input module (1) is electrically connected with the input terminal that data demultiplex module (2), and the data input mould
Digitized program transmission is streamed to data and demultiplexes module (2) by block (1).
2. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end that the data demultiplex module (2) is electrically connected with the input terminal of data decompression module (3), and the data demultiplex
Module (2) separates the data information of program transport streams, obtains program data stream and is transmitted to data decompression module (3).
3. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end of the data decompression module (3) is electrically connected with the input terminal of data FM module (4), the data decompression
Contracting module (3) unzips it the program data stream of acquisition, and by the data transmission in network telephony after decompression to data frequency modulation mould
Block (4).
4. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end of the data FM module (4) is electrically connected with the input terminal of signal addition module (5), the data frequency modulation mould
Block (4) calculates the corresponding modulating frequency of voice data, and every programs modulate different frequencies, and modulated signal is transmitted to
Signal addition module (5).
5. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end of the signal addition module (5) is electrically connected with the input terminal of signal frequency shift module (6), the signal addition mould
Block (5) is overlapped signal, is distributed on identical medium-frequency band signal.
6. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end of the signal frequency shift module (6) is electrically connected with the input terminal of signal side frequency filter module (7), the signal frequency
Medium-frequency band signal is moved high frequency band signal by shifting formwork block (6), while producing two side frequency signals, is believed using upper side frequency
Number be used as output band signal.
7. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The output end of the signal side frequency filter module (7) is electrically connected with the input terminal of power amplifier module (8), the signal side frequency filter
Wave module (7) filters out amplitude modulation fundamental frequency and lower side frequency signal in output band, retains upper side frequency signal, obtains Polymera and adjusts simultaneously
Make Polymera composite signal total in frequency modulation broadcasting frequency range；
The output end of the power amplifier module (8) is electrically connected with the input terminal of transmitting antenna (9).
8. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
The power amplifier module (8) includes pre-amplifying module (10), three times frequency module (11), recommends amplification module (12) and output
Filter module (13)；
The output end of the signal side frequency filter module (7) is electrically connected with the input terminal of pre-amplifying module (10)；
The output end of the pre-amplifying module (10) is electrically connected with the input terminal of three times frequency module (11)；
The output end of the three times frequency module (11) is electrically connected with the input terminal for recommending amplification module (12)；
The output end for recommending amplification module (12) is electrically connected with the input terminal of output filter module (13)；
The output end of the output filter module (13) is electrically connected with the input terminal of transmitting antenna (9).
9. a kind of broadcasting engineering transmitting antenna frequency modulation system according to claim 1, it is characterised in that:
Polymera composite signal is transmitted to pre-amplifying module (10) and amplified by the signal side frequency filter module (7), is put
Polymera composite signal after big is further amplified after three times frequency module (11) by recommending amplification module (12), the output filter
Wave module (13) emitted by transmitting antenna (9) after inhibition spurious signal to the Polymera composite signal being further amplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472665.7A CN109687926A (en) | 2018-12-04 | 2018-12-04 | A kind of broadcasting engineering transmitting antenna frequency modulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472665.7A CN109687926A (en) | 2018-12-04 | 2018-12-04 | A kind of broadcasting engineering transmitting antenna frequency modulation system |
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| Publication Number | Publication Date |
|---|---|
| CN109687926A true CN109687926A (en) | 2019-04-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811472665.7A Pending CN109687926A (en) | 2018-12-04 | 2018-12-04 | A kind of broadcasting engineering transmitting antenna frequency modulation system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070242701A1 (en) * | 2003-12-26 | 2007-10-18 | Hyun Lee | Apparatus and Method for Transforming a Digital Tv Broadcasting Signal to a Digital Radio Broadcasting Signal |
| CN106878641A (en) * | 2017-02-15 | 2017-06-20 | 河南省无线发射传输管理中心 | A kind of high-power universal transmitter of Whole frequency band multichannel realizes device and method |
| CN107231204A (en) * | 2017-05-19 | 2017-10-03 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | Frequency modulation broadcasting multi-path digital modulating system |
| CN206759400U (en) * | 2017-05-19 | 2017-12-15 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | High-frequency power amplifying circuit for multiple wireless frequency modulation broadcasting |
-
2018
- 2018-12-04 CN CN201811472665.7A patent/CN109687926A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070242701A1 (en) * | 2003-12-26 | 2007-10-18 | Hyun Lee | Apparatus and Method for Transforming a Digital Tv Broadcasting Signal to a Digital Radio Broadcasting Signal |
| CN106878641A (en) * | 2017-02-15 | 2017-06-20 | 河南省无线发射传输管理中心 | A kind of high-power universal transmitter of Whole frequency band multichannel realizes device and method |
| CN107231204A (en) * | 2017-05-19 | 2017-10-03 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | Frequency modulation broadcasting multi-path digital modulating system |
| CN206759400U (en) * | 2017-05-19 | 2017-12-15 | 吉林省广播电视研究所(吉林省新闻出版广电局科技信息中心) | High-frequency power amplifying circuit for multiple wireless frequency modulation broadcasting |
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Application publication date: 20190426 |
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