CN105634513B - A kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender - Google Patents
A kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender Download PDFInfo
- Publication number
- CN105634513B CN105634513B CN201610044503.8A CN201610044503A CN105634513B CN 105634513 B CN105634513 B CN 105634513B CN 201610044503 A CN201610044503 A CN 201610044503A CN 105634513 B CN105634513 B CN 105634513B
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- China
- Prior art keywords
- signal
- satellite
- housing
- output end
- driving circuit
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
Abstract
The invention discloses a kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender, including housing, RF signal input parts, power input and light signal output end are provided with housing, satellite low noise block mode selection switch is provided with housing；13/18V, 0/22KHz are provided with housing circuit occurs, the output end that circuit occurs for 13/18V, 0/22KHz is connected with RF signal input parts, the RF amplifying circuits being connected with RF signal input parts are additionally provided with housing, the output end of RF amplifying circuits is connected with laser driving circuit, the output end of laser driving circuit is connected with DFB band isolation laser devices, and output ends of the DFB with isolation laser device is connected with light signal output end；The present invention possesses the function of cable TV signal and satellite TV signal co-cable transmission, two kinds of signals utilize an optical sender transmission signal, system architecture is simplified, wiring is more succinct, while required operating voltage 13/18V and 0/22KHz switching signal can be provided for satellite low noise block.
Description
Technical field
The present invention relates to Photoelectric Signal Processing technical field, more particularly to one kind to realize that surface wave signal is total to satellite-signal
The optical sender of cable transmission.
Background technology
The working frequency of current most of optical senders is all individually to transmit TV in 47-860MHz or 950-2150MHz
Signal, cable TV signal (terrestrial television signal) and satellite TV signal are not mixed by same light
Emitter changes into signal transmission through fiber., it is necessary to which two kinds of optical senders are pacified during if necessary to two kinds of TV signals of simultaneous transmission
Mounted in same place, then fiber-optic signal is merged and transmitted, so bring very big trouble to installation wiring, at the same cost also compared with
Height, supply high frequency camera function is exported without 13/18V, 0/22KHz.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of using simple, the broadband surface wave of advantage of lower cost
Signal and satellite-signal co-cable transmission optical sender.
In order to solve the above technical problems, the technical scheme is that：A kind of broadband surface wave signal and satellite-signal
Co-cable transmission optical sender, including housing, RF signal input parts, power input and optical signal output are provided with the housing
Hold, satellite low noise block mode selection switch is provided with the housing；
13/18V, the 0/22KHz being connected with the satellite low noise block mode selection switch are provided with the housing
Generation circuit, the output end that circuit occurs for described 13/18V, 0/22KHz is connected with the RF signal input parts, in the housing
The RF amplifying circuits being connected with the RF signal output parts are additionally provided with, the output end of the RF amplifying circuits is connected with laser
Drive circuit, the output end of the laser driving circuit are connected with DFB band isolation laser devices, the DFB bands isolation laser device
Output end be connected with the light signal output end；
The power management module being connected with the power input is installed in the housing, the power management module with
Described 13/18V, 0/22KHz occur circuit, the RF amplifying circuits, the laser driving circuit and DFB band isolation and swashed
Light device electrically connects, and the power input is connected with external power supply adaptor.
As a kind of perferred technical scheme, the power management module includes power distribution circuit.
As a kind of perferred technical scheme, the laser driving circuit uses straight mode laser driving circuit, institute
State DFB band isolation laser devices and use coaxial packaging laser.
As a kind of perferred technical scheme, the RF amplifying circuits include high-frequency wideband microwave M MIC amplification chips.
By adopting the above-described technical solution, a kind of broadband surface wave signal is launched with satellite-signal co-cable transmission light
Machine, including housing, are provided with RF signal input parts, power input and light signal output end on the housing, on the housing
It is provided with satellite low noise block mode selection switch；It is provided with the housing and is selected with the satellite low noise block working condition
Circuit occurs for 13/18V, 0/22KHz of switch connection, and the output end of circuit occurs for described 13/18V, 0/22KHz and the RF believes
The connection of number input, RF amplifying circuits be connected with the RF signal output parts is additionally provided with the housing, the RF amplifies
The output end of circuit is connected with laser driving circuit, and the output end of the laser driving circuit is connected with DFB band isolation and swashed
Light device, output ends of the DFB with isolation laser device are connected with the light signal output end；Be provided with the housing with it is described
With described 13/18V, 0/22KHz circuit, institute occur for the power management module of power input connection, the power management module
State RF amplifying circuits, the laser driving circuit and DFB band isolation laser device electrical connections, the power input connection
There is external power supply adaptor；The present invention possesses the function of cable TV signal and satellite TV signal co-cable transmission, two kinds of letters
Number one optical sender transmission signal of utilization, system architecture is simplified, wiring is more succinct, while can be carried for satellite low noise block
For required operating voltage 13/18V and 0/22KHz switching signal.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the embodiment of the present invention；
Fig. 2 is the connection figure in kind of the embodiment of the present invention；
In figure：1- housings；2-RF signal input parts；3- power inputs；4- light signal output ends；5- satellite low noise block works
Make state selecting switch；6- light adjustable attenuators；7- photoreceivers；8- power supply adaptors；91- satellite signal receiving apparatus；92-
Surface wave signal receiving device；93- mixes/frequency divider.
Embodiment
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only explanation is passed through
Mode describes some one exemplary embodiments of the present invention.Undoubtedly, one of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of modes
Just.Therefore, accompanying drawing and description are inherently illustrative, are not intended to limit the scope of the claims.
As depicted in figs. 1 and 2, a kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender, including shell
Body 1, RF signal input parts 2, power input 3 and light signal output end 4 are provided with the housing 1, is set on the housing 1
There is satellite low noise block mode selection switch 5；
As depicted in figs. 1 and 2, it is provided with the housing 1 and is connected with the satellite low noise block mode selection switch 5
13/18V, 0/22KHz circuit occurs, the output end of circuit and the RF signal input parts occur for described 13/18V, 0/22KHz
2 are connected, and the RF amplifying circuits being connected with the RF signal output parts, the RF amplifying circuits bag are additionally provided with the housing 1
High-frequency wideband microwave M MIC amplification chips are included, the output end of the RF amplifying circuits is connected with laser driving circuit, described to swash
Light device drive circuit uses straight mode laser driving circuit, the output end of the laser driving circuit be connected with DFB bands every
From laser, DFB band isolation laser device use coaxial packaging laser, output ends of the DFB with isolation laser device and
The light signal output end 4 connects；
The power management module being connected with the power input 3, the power management module are installed in the housing 1
Including power distribution circuit, the power management module and described 13/18V, 0/22KHz occur circuit, the RF amplifying circuits,
The laser driving circuit and DFB band isolation laser device electrical connections, the power input 3 are connected with external power supply
Adapter 8.
The present invention possesses the function of cable TV signal and satellite TV signal co-cable transmission, and two kinds of signals utilize a light
Emitter transmission signal, system architecture is simplified, wiring is more succinct, is provided simultaneously with the work needed for being provided to satellite low noise block
Voltage 13/18V and 0/22KHz switching signal.
During work, signal that satellite signal receiving apparatus 91 and surface wave signal receiving device 92 receive by one it is mixed/
Frequency divider 93 is transferred to the RF signal input parts 2 of optical sender of the present invention, and data are changed after optical sender is handled
For optical signal, into optical fiber in transmit, received after light adjustable attenuator 6 by photoreceiver 7, be converted to RF signal outputs.
Present invention tool has the advantage that：
1. the present invention is designed using straight mode laser driving circuit, using coaxial packaging laser, manufacturing process is simple,
The cost of raw material is low.
2. the present invention uses high-frequency wideband microwave M MIC amplification chips, working frequency is wide, preferably adapts to 47-2150MHz
RF signals transmission in bandwidth.
3. the present invention is used for the fibre-optic transmission system (FOTS) of 47-2150MHz TV signals.
4. the integrated housing 1 of the present invention, external power adapter 8 are powered, installation and debugging are convenient, work safety, reliable.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender, it is characterised in that：It is described including housing
RF signal input parts, power input and light signal output end are provided with housing, satellite low noise block is provided with the housing
Mode selection switch；
13/18V, the 0/22KHz being connected with the satellite low noise block mode selection switch is provided with the housing to occur
Circuit, the output end that circuit occurs for described 13/18V, 0/22KHz are connected with the RF signal input parts, also set in the housing
The RF amplifying circuits being connected with the RF signal output parts are equipped with, the output end of the RF amplifying circuits is connected with laser driving
Circuit, the output end of the laser driving circuit are connected with DFB band isolation laser devices, and the DFB is defeated with isolation laser device
Go out end to be connected with the light signal output end；
The power management module being connected with the power input is installed in the housing, the power management module with it is described
Circuit, the RF amplifying circuits, the laser driving circuit and DFB band isolation laser devices occur for 13/18V, 0/22KHz
Electrical connection, the power input are connected with external power supply adaptor.
2. broadband surface wave signal as claimed in claim 1 and satellite-signal co-cable transmission optical sender, it is characterised in that：
The power management module includes power distribution circuit.
3. broadband surface wave signal as claimed in claim 1 and satellite-signal co-cable transmission optical sender, it is characterised in that：
The laser driving circuit uses straight mode laser driving circuit, and the DFB bands isolation laser device is swashed using coaxial packaging
Light device.
4. broadband surface wave signal and satellite-signal co-cable transmission optical sender as described in claim 1,2 or 3, its feature
It is：The RF amplifying circuits include high-frequency wideband microwave M MIC amplification chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044503.8A CN105634513B (en) | 2016-01-22 | 2016-01-22 | A kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044503.8A CN105634513B (en) | 2016-01-22 | 2016-01-22 | A kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105634513A CN105634513A (en) | 2016-06-01 |
| CN105634513B true CN105634513B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610044503.8A Active CN105634513B (en) | 2016-01-22 | 2016-01-22 | A kind of broadband surface wave signal and satellite-signal co-cable transmission optical sender |
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| CN (1) | CN105634513B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557320A (en) * | 1995-01-31 | 1996-09-17 | Krebs; Mark | Video mail delivery system |
| CN101072145A (en) * | 2007-05-31 | 2007-11-14 | 中国移动通信集团广东有限公司 | Wireless LAN indoor covering system |
| CN101102461A (en) * | 2007-07-25 | 2008-01-09 | 梁光海 | Thee-in-one network fusion access method and device of digital TV |
| CN202475624U (en) * | 2012-04-01 | 2012-10-03 | 金慰（宁波）电子有限公司 | Multifunctional amplification system |
| CN103856738A (en) * | 2012-12-03 | 2014-06-11 | 湖北牧马人网络技术股份有限公司 | User box with the function of multiplexing of network signal and satellite signal through cable television coaxial cable |
-
2016
- 2016-01-22 CN CN201610044503.8A patent/CN105634513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557320A (en) * | 1995-01-31 | 1996-09-17 | Krebs; Mark | Video mail delivery system |
| CN101072145A (en) * | 2007-05-31 | 2007-11-14 | 中国移动通信集团广东有限公司 | Wireless LAN indoor covering system |
| CN101102461A (en) * | 2007-07-25 | 2008-01-09 | 梁光海 | Thee-in-one network fusion access method and device of digital TV |
| CN202475624U (en) * | 2012-04-01 | 2012-10-03 | 金慰（宁波）电子有限公司 | Multifunctional amplification system |
| CN103856738A (en) * | 2012-12-03 | 2014-06-11 | 湖北牧马人网络技术股份有限公司 | User box with the function of multiplexing of network signal and satellite signal through cable television coaxial cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105634513A (en) | 2016-06-01 |
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