CN206908597U - Multiple-link satellite signal light transmitting and receiving system - Google Patents
Multiple-link satellite signal light transmitting and receiving system Download PDFInfo
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- CN206908597U CN206908597U CN201720724904.8U CN201720724904U CN206908597U CN 206908597 U CN206908597 U CN 206908597U CN 201720724904 U CN201720724904 U CN 201720724904U CN 206908597 U CN206908597 U CN 206908597U
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Abstract
The utility model discloses a kind of multiple-link satellite signal light transmitting and receiving system, including multiple-link satellite signal optical sender, optical branching device, multiple-link satellite signal receiver, the multiple-link satellite signal optical sender is connected with optical branching device, and the optical branching device is connected with multiple-link satellite signal receiver.The beneficial effects of the utility model：Using the system, the transmission of multiple-link satellite intermediate-freuqncy signal can be realized in single fiber optical-fiber network, is extended transmission distance, save fiber resource；Realize that point-to-point configuration transmits using optical branching device, receiving end access quantity can be increased.
Description
Technical field
The utility model belongs to technical field of photo communication, is related to a kind of transmitting-receiving for multiple-link satellite TV optical signal transmission
System.
Background technology
Digital satellite television be it is a kind of using geostationary satellite by the television signal transmission that digital coding is compressed to user
A kind of radio and television form at end.The reception of satellite television is typically used and realized using reception tuner and satellite television receiver,
It is satellite intermediate frequency signal output that tuner, which is received, by the frequency reducing of satellite television high-frequency signal, by satellite television receiver by satellite
Frequency signal is converted to AV signal broadcast.Therefore satellite TV signal from be wirelessly transferred be converted to wire transmission when, generally
Satellite television high-frequency signal is converted into the transmission of satellite intermediate frequency signal.
At present, the satellite intermediate frequency transmission of generally use 950MHz~2.6GHz frequency ranges after satellite TV reception gets off.The frequency
Section cable attenuation is big, can only pass tens meters of distances, if desired extend to hundreds of meters, then need satellite intermediate frequency amplifier to be amplified
Relaying, transmission link are complicated, and cost is higher, to pass several kilometers then the program can not realize at all.
In view of the above-mentioned problems, foreign countries also have is converted into optical signal transmission satellite intermediate frequency signal, such as German BKTEL companies
The model Fx-DS26 of production 2.6GHz bandwidth optical sender and model OR12-FA 2.6GHz bandwidth light-receiving units
Into light transmitting and receiving system, but this light transmitting and receiving system transmission mode is single, can not realize multichannel independence satellite-signal while transmit,
And the defects of expensive, space-consuming is larger be present, can not be commonly used.
The content of the invention
The utility model will solve the above problems, there is provided a kind of inexpensive multiple-link satellite signal light transmitting and receiving system.
The technical solution adopted in the utility model is：
Multiple-link satellite signal light transmitting and receiving system, including multiple-link satellite signal optical sender and multiple-link satellite signal light-receiving
Machine, the multiple-link satellite signal optical sender multiple-link satellite signal receiver are connected.
Further, in addition to optical branching device, the multiple-link satellite signal optical sender, optical branching device, multiple-link satellite signal
Photoreceiver is sequentially connected.
Further, the optical branching device uses PLC type optical branching device, 1260~1620nm of transmission wavelength scope.
Further, the multiple-link satellite signal optical sender include satellite-signal light emission module, the first wavelength division multiplexer,
Cpu control circuit and the first webmaster module, the satellite-signal light emission module control with the first wavelength division multiplexer, CPU respectively
Circuit is connected, and the cpu control circuit is connected with the first webmaster module.For realizing multichannel 950MHz~2.6GHz frequency bandwidths
Satellite intermediate frequency signal light transmitting and wavelength-division multiplex output, output light wavelength uses CWDM wavelength, each wavelength non-overlapping copies.
Further, the cpu control circuit, using the STC12C series monolithics of macrocrystalline science and technology.Inputted for monitoring
Level, optical output power of laser and supply voltage；According to the incoming level information or user instruction of acquisition, corresponding control is sent
System instruction realizes the adjustment of the laser level of drive to program control attenuator circuit.
Further, first wavelength division multiplexer is adopted using CWDM wavelength division multiplexers and/or the first webmaster module
With ZP-8621 type webmaster modules.
Further, the satellite-signal light emission module includes the first IF amplifier circuit, program control attenuator circuit, first
Level sensitive circuit, optical transmission circuit and the first RS232 serial port circuits, first IF amplifier circuit, program control attenuator circuit,
Optical transmission circuit is sequentially connected, the cpu control circuit and program control attenuator circuit, the first level sensitive circuit, optical transmission circuit,
First RS232 serial port circuits connect respectively.
Further, the multiple-link satellite signal receiver includes the second wavelength division multiplexer, satellite-signal light-receiving mould
Block and the second webmaster module, the satellite-signal Optical Receivers are connected with the second wavelength division multiplexer, cpu control circuit respectively,
The cpu control circuit is connected with the second webmaster module.For wavelength-division demultiplexing and opto-electronic conversion restore multichannel 950MHz~
The satellite intermediate frequency signal output of 2.6GHz frequency bandwidths.
Further, the satellite-signal Optical Receivers is put including photoelectric switching circuit, light agc circuit, the second intermediate frequency
Big circuit, second electrical level observation circuit and the 2nd RS232 serial port circuits, in the photoelectric switching circuit, light agc circuit, second
Frequency amplifying circuit is sequentially connected, the cpu control circuit and photoelectric switching circuit, light agc circuit, second electrical level detection circuit,
2nd RS232 serial port circuits connect respectively.
Further, second wavelength division multiplexer is adopted using CWDM wavelength division multiplexers and/or the second webmaster module
With ZP-8621 type webmaster modules.
Operation principle of the present utility model：Multiple-link satellite signal optical sender is independent the multiple-link satellite intermediate-freuqncy signal of input
Exported after electro-optic conversion, wavelength-division multiplex；Optical branching device realizes that point-to-multipoint optical-fiber network transmits, and docks more multiple-link satellite flashlights
Receiver；Multiple-link satellite signal receiver receives optical signal and output multi-channel satellite is reduced after wavelength-division demultiplexing, opto-electronic conversion
Intermediate-freuqncy signal.
The beneficial effects of the utility model：Multiple-link satellite intermediate-freuqncy signal is converted to the transmission of optical signal single fiber, extends transmission
Distance, save fiber resource；Realize that point-to-point configuration transmits using optical branching device, increase receiving end access quantity.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the theory diagram of multiple-link satellite signal optical sender.
Fig. 3 is the theory diagram of multiple-link satellite signal receiver.
Embodiment
Embodiment 1
Reference picture 1, multiple-link satellite signal light transmitting and receiving system, it is characterised in that：Including multiple-link satellite signal optical sender 11,
Optical branching device 12 and multiple-link satellite signal receiver 13；The multiple-link satellite signal optical sender 11 and the phase of optical branching device 12
Even, the optical branching device 12 is connected with multiple-link satellite signal receiver 13.
In the present embodiment can also directly multiple-link satellite signal optical sender 11 it is straight with multiple-link satellite signal receiver 13
Realization is connect in succession to transmit all the way.
Operation principle of the present utility model：Multiple-link satellite signal optical sender 11 is only the multiple-link satellite intermediate-freuqncy signal of input
Exported after vertical electro-optic conversion, wavelength-division multiplex；Optical branching device 12 realizes that point-to-multipoint optical-fiber network transmits, and docks more multiple-link satellite letters
Number photoreceiver 13；Multiple-link satellite signal receiver 13 receives optical signal and output is reduced after wavelength-division demultiplexing, opto-electronic conversion
Multiple-link satellite intermediate-freuqncy signal.Optical transmission distance is generally at 0~10 kilometer.
In satellite of the multiple-link satellite signal optical sender 11 for realizing multichannel 950MHz~2.6GHz frequency bandwidths
The light transmitting of frequency signal and wavelength-division multiplex output, output light wavelength use CWDM wavelength, each wavelength non-overlapping copies；Such as realize 4
During the satellite-signal light transmitting output of road, launch wavelength is optional respectively but is not limited to 1310nm, 1490nm, 1550nm, 1610nm
Deng 4 conventional CWDM wavelength.
The optical branching device 12 can use Shenzhen than the PLC series optical branching devices of foreign optic communication Science and Technology Ltd., transmission
1260~1620nm of wave-length coverage, realizes that single channel inputs multiple-channel output, and it is usually 2~8 tunnels to export way in the present system.Also may be used
To export way as 1, i.e., without using optical branching device 2, realize originator and the point-to-point optical signal transmission of receiving end.
The multiple-link satellite signal receiver 13 be used for wavelength-division demultiplexing and opto-electronic conversion restore multichannel 950MHz~
The satellite intermediate frequency signal output of 2.6GHz frequency bandwidths；Such as in 4 road satellite-signal optical transmission systems, first wavelength-division demultiplexing is defeated
Go out four CWDM wavelength channels such as 1310nm, 1490nm, 1550nm, 1610nm, then photoelectricity is carried out to four road optical signals respectively
Conversion, export the satellite intermediate frequency signal of four road 950MHz~2.6GHz frequency bandwidths.
Using above-mentioned multiple-link satellite signal light transmitting and receiving system, multiple-link satellite intermediate-freuqncy signal can be realized in single fiber optical-fiber network
Transmission, extends transmission distance, and saves fiber resource；Realize that point-to-point configuration transmits using optical branching device, receiving terminal can be increased
Access quantity.
Embodiment 2
Reference picture 2, as different from Example 1, the multiple-link satellite signal optical sender 11 of the present embodiment, including satellite letter
Number light emission module 21, the first wavelength division multiplexer 22, the webmaster module 24 of cpu control circuit 23 and first；The satellite-signal light
Transmitter module 21 is connected with the first wavelength division multiplexer 22, cpu control circuit 23 respectively, the net of cpu control circuit 23 and first
Tube module 24 is connected.
Satellite-signal light emission module 21 can set multiple, and it is integer such as to set n, n, the multiple-link satellite of the present embodiment
The operation principle of signal optical sender：N satellite-signal light emission module is inputted at satellite intermediate frequency signal independence light modulation to n roads
Reason is converted into optical signal, and wavelength division multiplexer transmits to being mixed in after the optical signal multiplexing process of n roads on an optical fiber, cpu control circuit
The monitoring and control to parameters in satellite-signal light emission module is realized, webmaster module realizes the remote biography of webmaster parameter
It is defeated.
Cpu control circuit realizes each satellite-signal light emission module using the STC12C series monolithics of macrocrystalline science and technology
The monitoring and control of parameter.First wavelength division multiplexer is CWDM wavelength division multiplexers, and Shenzhen can be used more limited than foreign optic communication science and technology
The CIR-CCWDM series wavelength division multiplexers of company, realize the wavelength-division multiplex mixing of CWDM wavelength channels.First webmaster module is adopted
With ZP-8621 type webmaster modules.
Embodiment 3
As different from Example 2, the satellite-signal light emission module in the present embodiment include the first IF amplifier circuit,
Program control attenuator circuit, the first level sensitive circuit, optical transmission circuit and the first RS232 serial port circuits；The first intermediate frequency amplification
Circuit is connected with program control attenuator circuit, and the program control attenuator circuit is connected with optical transmission circuit, cpu control circuit 23 respectively, institute
Cpu control circuit 23 is stated respectively with the first level sensitive circuit, the first RS232 serial port circuits, optical transmission circuit to be connected.
In the present embodiment, first IF amplifier circuit can use the TAT7460 radio frequencies of TRIQUINT companies of the U.S.
Amplification chip, for amplifying the satellite intermediate frequency signal of 950MHz~2.6GHz frequency bandwidths.The program control attenuator circuit can be adopted
With the program control decay chips of the MAAD-008866 of MACOM companies of the U.S., level adjusting range can be set to 0~31.5dB, 0.5dB
Stepping.First level sensitive circuit uses the AD8314RM chips of AD companies of the U.S..Optical transmission circuit, using Xiamen shellfish Lay
BLLD-PFA2-D series coaxial packaging Distributed Feedback Lasers, output light wavelength select stepping 20nm CWDM wavelength.First RS232 goes here and there
Mouth circuit uses the MAX232 chips of MAXIM companies of the U.S., for providing RS232 serial interfaces, is easy to network parameter management.
Embodiment 4
Reference picture 3, unlike embodiment 1 or 2 or 3, the multiple-link satellite signal receiver 13 of the present embodiment, including
Second wavelength division multiplexer 31, the webmaster module 34 of satellite-signal Optical Receivers 32 and second；The satellite-signal Optical Receivers
32 are connected with the second wavelength division multiplexer 31, cpu control circuit 23 respectively, the webmaster module 34 of cpu control circuit 23 and second
It is connected.
Satellite-signal Optical Receivers 32 can set multiple, and it is integer such as to set n, n, multiple-link satellite signal light-receiving
The operation principle of machine 13：Wavelength division multiplexer exports the optical signal of n roads different wave length after being demultiplexed to input optical signal wavelength-division, n is individual
Satellite-signal Optical Receivers is converted into satellite intermediate frequency signal output, CPU to n roads input satellite optical signal independent light demodulation process
Control circuit realizes the monitoring and control to parameters in satellite-signal Optical Receivers, and webmaster module realizes webmaster parameter
Long-distance transmissions.
Second wavelength division multiplexer uses CWDM wavelength division multiplexers, can use Shenzhen than foreign optic communication Science and Technology Ltd.
CIR-CCWDM series wavelength division multiplexers.Second webmaster module using Shenzhen shake it is prosperous communication Science and Technology Ltd. ZP-8621 types
Webmaster module.
Embodiment 5
As different from Example 4, the satellite-signal light in the multiple-link satellite signal receiver 13 in this implementation connects
Receiving module 32 includes photoelectric switching circuit, light agc circuit, the second IF amplifier circuit, second electrical level observation circuit and second
RS232 serial port circuits；The photoelectric switching circuit is connected with light agc circuit, and the smooth agc circuit amplifies with the second intermediate frequency respectively
Circuit, cpu control circuit 23 are connected, the cpu control circuit 23 and second electrical level detection circuit, the 2nd RS232 serial port circuits,
Photoelectric switching circuit is respectively connected with.
In the present embodiment, photoelectric switching circuit is managed using the BLPD-PFA2-75AR series coaxial packagings PIN of Xiamen shellfish Lay,
Receive 1260~1620nm of optical wavelength range, -10~+2dBm of received optical power scope.Light agc circuit is using 2.6GHz bandwidth
Program control decay chip, the program control decay chips of MAAD-008866 of MACOM companies of the U.S. can be specifically used, by cpu control circuit
23 control, the attenuation that MAAD-008866 journeys subtract chip is accordingly adjusted according to control instruction, reach the mesh of constant level output
's.Second IF amplifier circuit use TRIQUINT companies of the U.S. TAT7460 radio frequency amplification chips, for amplify 950MHz~
The satellite intermediate frequency signal of 2.6GHz frequency bandwidths, exported with providing larger level.Second electrical level detection circuit is public using U.S. AD
The AD8314RM chips of department, for inputting the measurement of satellite intermediate frequency signal level, the result measured is exported and controls electricity to CPU
Road 4.2nd RS232 serial port circuits use the MAX232 chips of MAXIM companies of the U.S., for providing RS232 serial interfaces, are easy to
Network parameter management.
It is above preferred embodiment of the present utility model, the scope of protection of the utility model is not limited, for ability
The deformation and improvement that field technique personnel make according to mentality of designing of the present utility model, should all be considered as protection of the present utility model
Within the scope of.
Claims (9)
1. multiple-link satellite signal light transmitting and receiving system, it is characterised in that：Believe including multiple-link satellite signal optical sender and multiple-link satellite
Number photoreceiver, the multiple-link satellite signal optical sender are connected with multiple-link satellite signal receiver；
The multiple-link satellite signal optical sender includes satellite-signal light emission module, the first wavelength division multiplexer, cpu control circuit
With the first webmaster module, the satellite-signal light emission module is connected with the first wavelength division multiplexer, cpu control circuit respectively, institute
Cpu control circuit is stated with the first webmaster module to be connected.
2. multiple-link satellite signal light transmitting and receiving system according to claim 1, it is characterised in that：Also include optical branching device, institute
Multiple-link satellite signal optical sender, optical branching device, multiple-link satellite signal receiver is stated to be sequentially connected.
3. multiple-link satellite signal light transmitting and receiving system according to claim 2, it is characterised in that：The optical branching device uses
PLC type optical branching device, 1260~1620nm of transmission wavelength scope.
4. multiple-link satellite signal light transmitting and receiving system according to claim 1, it is characterised in that：The satellite-signal light transmitting
Module includes the first IF amplifier circuit, program control attenuator circuit, the first level sensitive circuit, optical transmission circuit and the first RS232
Serial port circuit, first IF amplifier circuit, program control attenuator circuit, optical transmission circuit are sequentially connected, the cpu control circuit
It is connected respectively with program control attenuator circuit, the first level sensitive circuit, optical transmission circuit, the first RS232 serial port circuits.
5. multiple-link satellite signal light transmitting and receiving system according to claim 1, it is characterised in that：First wavelength division multiplexer
Using CWDM wavelength division multiplexers；And/or the first webmaster module uses ZP-8621 type webmaster modules.
6. multiple-link satellite signal light transmitting and receiving system according to claim 1, it is characterised in that：The cpu control circuit is adopted
With STC12C series monolithics.
7. multiple-link satellite signal light transmitting and receiving system according to claim 1, it is characterised in that：The multiple-link satellite flashlight
Receiver includes the second wavelength division multiplexer, satellite-signal Optical Receivers and the second webmaster module, the satellite-signal light-receiving
Module is connected with the second wavelength division multiplexer, cpu control circuit respectively, and the cpu control circuit is connected with the second webmaster module.
8. multiple-link satellite signal light transmitting and receiving system according to claim 7, it is characterised in that：The satellite-signal light-receiving
Module includes photoelectric switching circuit, light agc circuit, the second IF amplifier circuit, level monitoring circuit and the 2nd RS232 serial port powers
Road, the photoelectric switching circuit, light agc circuit, the second IF amplifier circuit are sequentially connected, the cpu control circuit and photoelectricity
Change-over circuit, light agc circuit, level sensitive circuit, RS232 serial port circuits connect respectively.
9. multiple-link satellite signal light transmitting and receiving system according to claim 7, it is characterised in that：Second wavelength division multiplexer
ZP-8621 type webmaster modules are used using CWDM wavelength division multiplexers and/or the second webmaster module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724904.8U CN206908597U (en) | 2017-06-21 | 2017-06-21 | Multiple-link satellite signal light transmitting and receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724904.8U CN206908597U (en) | 2017-06-21 | 2017-06-21 | Multiple-link satellite signal light transmitting and receiving system |
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| Publication Number | Publication Date |
|---|---|
| CN206908597U true CN206908597U (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720724904.8U Expired - Fee Related CN206908597U (en) | 2017-06-21 | 2017-06-21 | Multiple-link satellite signal light transmitting and receiving system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399153A (en) * | 2020-11-30 | 2021-02-23 | 深圳市广为通信技术有限公司 | Optical fiber home-to-home transmission equipment received by dual-polarization satellite signal single satellite machine |
| CN113890619A (en) * | 2021-08-25 | 2022-01-04 | 中航光电科技股份有限公司 | Intermediate frequency signal optical transmitter and receiver |
-
2017
- 2017-06-21 CN CN201720724904.8U patent/CN206908597U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399153A (en) * | 2020-11-30 | 2021-02-23 | 深圳市广为通信技术有限公司 | Optical fiber home-to-home transmission equipment received by dual-polarization satellite signal single satellite machine |
| CN113890619A (en) * | 2021-08-25 | 2022-01-04 | 中航光电科技股份有限公司 | Intermediate frequency signal optical transmitter and receiver |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20200621 |