CN109361463A - A kind of multichannel ROF system and implementation method - Google Patents
A kind of multichannel ROF system and implementation method Download PDFInfo
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- CN109361463A CN109361463A CN201811503936.0A CN201811503936A CN109361463A CN 109361463 A CN109361463 A CN 109361463A CN 201811503936 A CN201811503936 A CN 201811503936A CN 109361463 A CN109361463 A CN 109361463A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
- H04B10/25756—Bus network topology
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Abstract
The present invention relates to a kind of multichannel ROF system and implementation methods, eight tunnel radiofrequency signals are separately input into eight light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, export eight road optical signals, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver II by optical cable, light-receiving insert box carries out " optical-electronic " conversion to transmission eight road optical signal of Lai, restore eight tunnel radiofrequency signals, complete the remote transmission of eight tunnel radiofrequency signals, or eight tunnel radiofrequency signal be separately input into eight light emitting insert boxes of optical transmitter and receiver II, carry out " electrical-optical " conversion, export eight road optical signals, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver I by optical cable, light-receiving insert box carries out " optical-electronic " conversion to transmission eight road optical signal of Lai, restore eight tunnel radiofrequency signals, complete the long distance of eight tunnel radiofrequency signals From transmission.The present invention is a kind of multichannel ROF system small in size, light-weight, density is high, low in energy consumption, flexible, stable.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly, to a kind of multichannel ROF system and implementation method, for more
The remote optical transport of channel radio frequency signal.
Background technique
So-called ROF technology (radio frequency optical transport) is the transmission for being realized broadband wireless signal using optical fiber as transmission medium, handed over
It the functions such as changes, be delayed, giving full play to the advantages that optical fiber transmission attenuation is small, distance is remote, strong antijamming capability, can be widely applied to defend
It is star communication, antenna pulling away, wide band radio-frequency microwave signal transmission, local oscillation signal transmission, fiber delay time, electronic countermeasure, airborne, carrier-borne
The fields such as communication.
Currently, with the continuous maturation of ROF technology, application field and constantly expanding using scale, showing in the market
Having product is mostly single channel and binary channels, there is a problem of that volume is big, density is small (1U binary channels), power consumption is high, larger journey
ROF product is limited on degree in phased-array radar (since one position of phased-array radar may need several hundred, to volume and close
Spend more demanding), the application in the fields such as airborne, carrier-borne (weight, volume, power consumption are all required).The present invention exactly answers herein
With a kind of multichannel ROF system invented under background, the demand in practical application is solved.
Summary of the invention
That present invention aim to address traditional ROF small product sizes is big, density is small, power consumption is high, phased-array radar, it is airborne,
The inconvenient problem of carrier-borne field application, especially provide it is a kind of it is multiple functional, flexibly configurable, small in size, density is high, 1U eight is logical
Road, multichannel ROF system and implementation method low in energy consumption.
Present invention technical solution used for the above purpose is: a kind of multichannel ROF system, by optical transmitter and receiver I, light
Terminal II and several optical cables composition, optical transmitter and receiver I are connected with optical transmitter and receiver II by optical cable, it is characterised in that: the optical transmitter and receiver I and light
II structure of terminal is identical, is made of 1U cabinet, power supply insert box, main control unit, business insert box and one piece of backboard, and the business is inserted
Box includes light emitting insert box and light-receiving insert box；
The 1U cabinet is made of structural member, guide rail and backboard, and provides two power supply slot positions, a main control unit slot position and eight
A power supply insert box is arranged in a business insert box slot position respectively at two power supply slot positions, and master control is arranged at main control unit slot position
Eight light emitting insert boxes or eight light-receiving insert boxes are arranged in unit at eight business insert box slot positions of the 1U cabinet of optical transmitter and receiver I
Or the combination of light emitting insert box and light-receiving insert box,
Eight light-receiving insert boxes or eight light emitting insert boxes are set at eight business insert box slot positions of the 1U cabinet of optical transmitter and receiver II
Or the combination of light-receiving insert box and light emitting insert box, business insert box slot position are compatible for light emitting insert box and light-receiving insert box；
The power supply insert box, main control unit and business insert box are connected by backboard, using I2C bus communication, and all heat is supported to insert
It pulls out；
The power supply insert box is made of electromagnetic interface filter, AC/DC power module, power supply combiner and hot-swapping controller；
AC220V power supply is after electromagnetic interface filter, into AC/DC power module, using power supply combiner and hot plug
Controller exports DC12V to backboard；Power supply combiner and hot-swapping controller are according to output DC12V voltage swing state, control
The high power supply insert box of output voltage provides the power supply of DC12V to backboard, when one of power supply insert box breaks down no electricity
When pressure output, power supply combiner and hot-swapping controller automatically control another power supply insert box and export DC12V to backboard, realize two
A power supply insert box hot plug and warm back-up, it is ensured that system reliably working；
The effect of power supply insert box is that AC220V is switched to DC12V, is that main control unit and business insert box are powered, and are realized by backboard
The warm back-up of system power supply power supply；
The backboard is passive backplane, receives power supply insert box DC12V power supply, is powered for main control unit and business insert box；
The main control unit is made of hot plug and electric power management circuit and system on chip ZYNQ；System on chip ZYNQ passes through I2C
It is communicated between bus and each business insert box, realizes the state modulator and Working Status Monitoring to each business insert box；Also externally provide
LAN interface, GE interface, RS232 interface, RS485 interface and the 2.5G data transmission channel of communication, and provide and be based on keyboard and liquid
The local man-machine interaction mode of crystalline substance display；
The light emitting insert box is by first order low noise LNA1, first order numerical-control attenuator ATT1, second level low noise LNA2,
Second level numerical-control attenuator ATT2, third level low noise LNA3, wave detector, laser LD, plug-and-play circuit and MCU control and LD drive
Dynamic circuit composition；
Radio frequency input passes sequentially through first order low noise LNA1, first order numerical-control attenuator ATT1, second level low noise LNA2, the
Second level numerical-control attenuator ATT2 and the third level low noise LNA3 input connect, the third level low noise LNA3 output respectively with wave detector
It inputs and connects with laser LD, laser LD output is connect with light output；
DC12V power input is connect with plug-and-play circuit, MCU control and LD driving circuit respectively with first order numerical-control attenuator
ATT1, second level numerical-control attenuator ATT2, wave detector, laser LD connection；MCU passes through I2C bus is led to main control unit
Letter, is further monitored the working condition of laser LD, completes the control and monitoring of radiofrequency signal conditioning unit, light emitting
Radio-frequency input signals has been carried out " electrical-optical " conversion by insert box；
The light-receiving insert box is by photoelectric conversion diode PD, first order low noise LNA1, first order numerical-control attenuator ATT1,
Second level low noise LNA2, second level numerical-control attenuator ATT2, wave detector, plug-and-play circuit and MCU control and PD driving circuit group
At；
Light input passes sequentially through photoelectric conversion diode PD, first order low noise LNA1, first order numerical-control attenuator ATT1, second
Grade low noise LNA2, second level numerical-control attenuator ATT2 input connection, second level numerical-control attenuator ATT2 output respectively with detection
Device and radio frequency output connection；
DC12V power input is connect with plug-and-play circuit, MCU control and PD driving circuit respectively with photoelectric conversion diode PD,
First order numerical-control attenuator ATT1, second level numerical-control attenuator ATT2, wave detector connection；
MCU passes through I2C bus is communicated with main control unit, further to the working condition and reception of photoelectric conversion diode PD
Optical power is monitored, and completes the control and monitoring of radiofrequency signal conditioning unit, and optical signal has been carried out " light-by light-receiving insert box
Electricity " conversion, reduces radiofrequency signal.
A kind of implementation method of multichannel ROF system, which is characterized in that steps are as follows: there are two power supplys for optical transmitter and receiver I configuration
Insert box, a main control unit, eight light emitting insert boxes or eight light-receiving insert boxes, power supply insert box that there are two optical transmitter and receiver II configurations,
One main control unit, eight light-receiving insert boxes or light emitting insert box, are mounted respectively to the two places A and B for optical transmitter and receiver I and optical transmitter and receiver II
Eight business insert boxes of optical transmitter and receiver I and optical transmitter and receiver II are respectively connected with by point, A and two place B by eight optical cables, eight road radio frequencies letter
Eight light emitting insert boxes of optical transmitter and receiver I number are separately input into, " electrical-optical " conversion is carried out, exports eight road optical signals, eight road optical signals
Eight light-receiving insert boxes of optical transmitter and receiver II are transmitted separately to by eight optical cables, light-receiving insert box is to transmission eight road optical signal of Lai
" optical-electronic " conversion is carried out, eight tunnel radiofrequency signals are restored, completes remote transmission or the eight road radio frequencies letter of eight tunnel radiofrequency signals
Eight light emitting insert boxes of optical transmitter and receiver II number are separately input into, " electrical-optical " conversion is carried out, export eight road optical signals, eight road light letter
Number be transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver I by optical cable, light-receiving insert box to transmission eight road optical signal of Lai into
Row " optical-electronic " conversion, restores eight tunnel radiofrequency signals, completes the remote transmission of eight tunnel radiofrequency signals.
The beneficial effects of the present invention are: business insert box is compatible for light emitting insert box and light-receiving insert box.
AC220V is switched to DC12V by two power supply insert boxes, is that main control unit and business insert box are powered by backboard, is realized
The warm back-up of system power supply power supply.
Main control unit passes through I2It is communicated between C bus and each business insert box, realizes the state modulator to each business insert box
And Working Status Monitoring, and communication interface and local human-computer interaction are externally provided.Power supply insert box, main control unit and business insert box are equal
Support hot plug.
The present invention compares current product, greatly reduces the volume and weight of ROF system, improves the close of ROF system
Degree, flexibility and stability, further improve the application range of ROF technology.
The present invention is a kind of multichannel ROF system small in size, light-weight, density is high, low in energy consumption, flexible, stable.
Detailed description of the invention
Fig. 1 is the composition block diagram of present system；
Fig. 2 is the functional block diagram of present system；
Fig. 3 is power supply insert box functional block diagram of the invention；
Fig. 4 is main control unit functional block diagram of the invention；
Fig. 5 is light emitting insert box functional block diagram of the invention；
Fig. 6 is this light-receiving insert box functional block diagram.
Specific embodiment
Technical solution of the present invention is clearly and completely described with reference to the accompanying drawings and examples, is shown, it is described
Embodiment be a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without making creative work belongs to what the present invention protected
Range.
As shown in Figure 1 and Figure 2, a kind of multichannel ROF system is made of, light end optical transmitter and receiver I, optical transmitter and receiver II and several optical cables
Machine I is connected with optical transmitter and receiver II by optical cable, and optical transmitter and receiver I is identical with II structure of optical transmitter and receiver, by 1U cabinet 1, power supply insert box, master control list
Member, business insert box and one piece of backboard composition, business insert box includes light emitting insert box and light-receiving insert box.
1U cabinet 1 is made of structural member, guide rail and backboard, and provide two power supply slot positions, a main control unit slot position and
Eight business insert box slot positions, are arranged a power supply insert box respectively at two power supply slot positions, and master is arranged at main control unit slot position
Unit is controlled, eight light emitting insert boxes are set at eight business insert box slot positions of the 1U cabinet 1 of optical transmitter and receiver I or eight light-receivings are inserted
The combination of box or light emitting insert box and light-receiving insert box.
Eight light-receiving insert boxes or eight light emittings are set at eight business insert box slot positions of the 1U cabinet 1 of optical transmitter and receiver II
The combination of insert box or light-receiving insert box and light emitting insert box, business insert box slot position are simultaneous for light emitting insert box and light-receiving insert box
Hold.
Power supply insert box, main control unit and business insert box are connected by backboard, and I is used between main control unit and business insert box2C
Bus communication, and all support hot plug.
Power supply insert box is as shown in Fig. 3, is controlled by electromagnetic interface filter, AC/DC power module, power supply combiner and hot plug
Device composition.
AC220V power supply is after electromagnetic interface filter, into AC/DC power module, using power supply combiner and heat
Swap controller export DC12V to backboard, power supply combiner and hot-swapping controller according to output DC12V voltage swing state,
It controls the high power supply insert box of output voltage and provides the power supply of DC12V to backboard, when one of power supply insert box breaks down
When Non voltage output, power supply combiner and hot-swapping controller automatically control another power supply insert box and export DC12V to backboard, in fact
Existing two power supply insert box hot plugs and warm back-up, it is ensured that system reliably working.
Backboard is passive backplane, receives power supply insert box DC12V power supply, is powered for main control unit and business insert box.
Main control unit is as shown in Fig. 4, is made of hot plug and electric power management circuit and system on chip ZYNQ.System on chip
ZYNQ passes through I2It is communicated between C bus and each business insert box, realizes the state modulator and Working Status Monitoring to each business insert box,
Communication interface is also externally provided, comprising: LAN interface, GE interface, RS232 interface, RS485 interface and 2.5G data transmission channel,
And provide the local man-machine interaction mode based on keyboard and liquid crystal display, the XC7Z030 of the model Xilinx of ZYNQ.
Light emitting insert box is as shown in Fig. 5, by first order low noise LNA1, first order numerical-control attenuator ATT1, the second level
Low noise LNA2, second level numerical-control attenuator ATT2, third level low noise LNA3, wave detector, laser LD, plug-and-play circuit and
MCU control and LD driving circuit composition.
Radio frequency input is connected with first order low noise LNA1 input, the output and first order numerical control of first order low noise LNA1
Attenuator ATT1 input connection, first order numerical-control attenuator ATT1 output are connected with second level low noise LNA2 input, the second level
Low noise LNA2 output is connected with second level numerical-control attenuator ATT2 input, second level numerical-control attenuator ATT2 output and the third level
Low noise LNA3 input connection, third level low noise LNA3 output are connected with wave detector and laser LD input respectively, laser
LD output is connect with light output；
DC12V power input is connect with plug-and-play circuit, MCU control and LD driving circuit respectively with first order numerical-control attenuator
ATT1, second level numerical-control attenuator ATT2, wave detector, laser LD connection；MCU passes through I2C bus is led to main control unit
Letter, is further monitored the working condition of laser LD, completes the control and monitoring of radiofrequency signal conditioning unit；To sum up institute
It states, radio-frequency input signals has been carried out " electrical-optical " and converted by light emitting insert box.
Light-receiving insert box is as shown in Fig. 6, by photoelectric conversion diode PD, first order low noise LNA1, first order numerical control
Attenuator ATT1, second level low noise LNA2, second level numerical-control attenuator ATT2, wave detector, plug-and-play circuit and MCU control and
PD driving circuit composition.
Light input is connected with photoelectric conversion diode PD input, photoelectric conversion diode PD output and first order low noise
LNA1 input connection, the output of first order low noise LNA1 and first order numerical-control attenuator ATT1 input connect, first order numerical control
Attenuator ATT1 output is connected with second level low noise LNA2 input, second level low noise LNA2 output and second level numerical control attenuation
Device ATT2 input connection, second level numerical-control attenuator ATT2 output are connected with wave detector and radio frequency output respectively；
DC12V power input is connect with plug-and-play circuit, MCU control and PD driving circuit respectively with photoelectric conversion diode PD,
First order numerical-control attenuator ATT1, second level numerical-control attenuator ATT2, wave detector connection；
MCU passes through I2C bus is communicated with main control unit, further to the working condition and reception of photoelectric conversion diode PD
Optical power is monitored, and completes the control and monitoring of radiofrequency signal conditioning unit；In conclusion light-receiving insert box by optical signal into
Row " optical-electronic " conversion, reduces radiofrequency signal.
Business insert box includes light emitting insert box and light-receiving insert box, but not limited to this, it can also be opened for power splitter insert box, radio frequency
Close insert box, downconverter box etc..
A kind of implementation method of multichannel ROF system, steps are as follows: there are two power supply insert boxes, a master for optical transmitter and receiver I configuration
Unit and eight light emitting insert boxes are controlled, there are two power supply insert box, a main control unit and eight light-receivings to insert for optical transmitter and receiver II configuration
Optical transmitter and receiver I and optical transmitter and receiver II are mounted respectively to two place A and B apart from several hundred rice to tens kms by box, and A and two place B are logical
Eight optical cables are crossed to be respectively connected with eight business insert boxes of optical transmitter and receiver I and optical transmitter and receiver II.
Eight tunnel radiofrequency signals are separately input into eight light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output eight
Road optical signal, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver II, light-receiving insert box by eight optical cables
" optical-electronic " conversion is carried out to transmission eight road optical signal of Lai, eight tunnel radiofrequency signals is restored, completes the long distance of eight tunnel radiofrequency signals
From eight light emitting insert boxes that transmission or eight tunnel radiofrequency signals are separately input into optical transmitter and receiver II, " electrical-optical " conversion, output are carried out
Eight road optical signals, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver I by optical cable, and light-receiving insert box is to biography
Defeated eight road optical signal of Lai carries out " optical-electronic " conversion, restores eight tunnel radiofrequency signals, completes the remote biography of eight tunnel radiofrequency signals
It is defeated.
Embodiment one:
Optical transmitter and receiver I configures: 1U cabinet 1, eight tunnel light emitting insert boxes, one piece of main control unit, two pieces of power supply insert boxes and backboard
Optical transmitter and receiver II configures: 1U cabinet 1, eight road light-receiving insert boxes, one piece of main control unit, two pieces of power supply insert boxes and backboard.
Eight tunnel radiofrequency signals are separately input into eight tunnel light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output eight
Road optical signal, eight road optical signals are transmitted separately to eight road light-receiving insert boxes of optical transmitter and receiver II by optical cable, and light-receiving insert box is to biography
Defeated eight road optical signal of Lai carries out " optical-electronic " conversion, restores eight tunnel radiofrequency signals, completes eight tunnel radiofrequency signals by optical transmitter and receiver I
Remote transmission to optical transmitter and receiver II；It is reversed.
Embodiment two:
Optical transmitter and receiver I configures: 1U cabinet 1, all the way light emitting insert box, seven road light-receiving insert boxes, one piece of main control unit, two blocks of power supplys are inserted
Box and backboard.
Optical transmitter and receiver II configures: 1U cabinet 1, all the way light-receiving insert box, seven tunnel light emitting insert boxes, one piece of main control unit, two pieces
Power supply insert box and backboard.
Radiofrequency signal is separately input into the light emitting insert box all the way of optical transmitter and receiver I all the way, carries out " electrical-optical " conversion, output one
Road optical signal, optical signal passes through the light-receiving insert box all the way of optical cable transmission to optical transmitter and receiver II all the way, and light-receiving insert box carrys out transmission
Optical signal all the way carry out " optical-electronic " conversion, restore radiofrequency signal all the way；Seven tunnel radiofrequency signals are separately input into optical transmitter and receiver II
Seven tunnel light emitting insert boxes, carry out " electrical-optical " conversion, export seven road optical signals, seven road optical signals are transmitted separately to by optical cable
Seven road light-receiving insert boxes of optical transmitter and receiver I, light-receiving insert box carry out " optical-electronic " conversion to transmission seven road optical signal of Lai, restore
Seven tunnel radiofrequency signals；Complete all the way radiofrequency signal from optical transmitter and receiver I to optical transmitter and receiver II it is remote transmission with seven tunnel radiofrequency signals by
Remote transmission of the optical transmitter and receiver II to optical transmitter and receiver I；It is reversed.
Embodiment three:
Optical transmitter and receiver I configures: 1U cabinet 1, two tunnel light emitting insert boxes, six road light-receiving insert boxes, one piece of main control unit, two blocks of power supplys are inserted
Box and backboard.
Optical transmitter and receiver II configures: 1U cabinet 1, two road light-receiving insert boxes, six tunnel light emitting insert boxes, one piece of main control unit, two pieces
Power supply insert box and backboard.
Two tunnel radiofrequency signals are separately input into two tunnel light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output two
Road optical signal, two road optical signals are transmitted separately to two road light-receiving insert boxes of optical transmitter and receiver II by optical cable, and light-receiving insert box is to biography
Defeated bis- road optical signal of Lai carries out " optical-electronic " conversion, restores two tunnel radiofrequency signals；Six tunnel radiofrequency signals are separately input into light end
Six tunnel light emitting insert boxes of machine II carry out " electrical-optical " conversion, export six road optical signals, and six road optical signals pass respectively by optical cable
Six road light-receiving insert boxes of optical transmitter and receiver I are transported to, light-receiving insert box carries out " optical-electronic " conversion to transmission six road optical signal of Lai, also
Six tunnel radiofrequency signal of Yuan Chu；Complete remote transmission and six road radio frequencies letter of the two tunnel radiofrequency signals from optical transmitter and receiver I to optical transmitter and receiver II
Number from optical transmitter and receiver II to the remote transmission of optical transmitter and receiver I；It is reversed.
Example IV:
Optical transmitter and receiver I configures: 1U cabinet 1, three tunnel light emitting insert boxes, five road light-receiving insert boxes, one piece of main control unit, two blocks of power supplys are inserted
Box and backboard
Optical transmitter and receiver II configures: 1U cabinet 1, three road light-receiving insert boxes, five tunnel light emitting insert boxes, one piece of main control unit, two blocks of power supplys
Insert box and backboard.
Three tunnel radiofrequency signals are separately input into three tunnel light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output three
Road optical signal, three road optical signals are transmitted separately to three road light-receiving insert boxes of optical transmitter and receiver II by optical cable, and light-receiving insert box is to biography
Defeated tri- road optical signal of Lai carries out " optical-electronic " conversion, restores three tunnel radiofrequency signals；Five tunnel radiofrequency signals are separately input into light end
Five tunnel light emitting insert boxes of machine II carry out " electrical-optical " conversion, export five road optical signals, and five road optical signals pass respectively by optical cable
Five road light-receiving insert boxes of optical transmitter and receiver I are transported to, light-receiving insert box carries out " optical-electronic " conversion to transmission five road optical signal of Lai, also
Five tunnel radiofrequency signal of Yuan Chu；Complete remote transmission and five road radio frequencies letter of the three tunnel radiofrequency signals from optical transmitter and receiver I to optical transmitter and receiver II
Number from optical transmitter and receiver II to the remote transmission of optical transmitter and receiver I；It is reversed.
Embodiment five:
Optical transmitter and receiver I configures: 1U cabinet 1, four tunnel light emitting insert boxes, four road light-receiving insert boxes, one piece of main control unit, two blocks of power supplys are inserted
Box and backboard.
Optical transmitter and receiver II configures: 1U cabinet 1, four road light-receiving insert boxes, four tunnel light emitting insert boxes, one piece of main control unit, two pieces
Power supply insert box and contain backboard.
Four tunnel radiofrequency signals are separately input into four tunnel light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output four
Road optical signal, four road optical signals are transmitted separately to four road light-receiving insert boxes of optical transmitter and receiver II by optical cable, and light-receiving insert box is to biography
Defeated tetra- road optical signal of Lai carries out " optical-electronic " conversion, restores four tunnel radiofrequency signals；Four tunnel radiofrequency signals are separately input into light end
Four tunnel light emitting insert boxes of machine II carry out " electrical-optical " conversion, export four road optical signals, and four road optical signals pass respectively by optical cable
Four road light-receiving insert boxes of optical transmitter and receiver I are transported to, light-receiving insert box carries out " optical-electronic " conversion to transmission tetra- road optical signal of Lai, also
Tetra- tunnel radiofrequency signal of Yuan Chu；Complete remote transmission and four road radio frequencies letter of the four tunnel radiofrequency signals from optical transmitter and receiver I to optical transmitter and receiver II
Number from optical transmitter and receiver II to the remote transmission of optical transmitter and receiver I；It is reversed.
Embodiment six:
Optical transmitter and receiver I configures: 1U cabinet 1, all the way power splitter insert box, two-way light emitting insert box, two-way light-receiving insert box, all the way radio frequency
Switch insert box, one piece of main control unit, two pieces of power supply insert boxes and backboard
Optical transmitter and receiver II configures: 1U cabinet, all the way power splitter insert box, two-way light emitting insert box, two-way light-receiving insert box, all the way radio frequency
Switch insert box, one piece of main control unit, two pieces of power supply insert boxes and backboard.
Radiofrequency signal is input to the power splitter insert box of optical transmitter and receiver I all the way, and power splitter insert box exports two-way radiofrequency signal, respectively
It is input to two-way light emitting insert box, carries out " electrical-optical " conversion, exports two ways of optical signals, two ways of optical signals passes respectively by optical cable
The two-way light-receiving insert box of optical transmitter and receiver II is transported to, light-receiving insert box carries out " optical-electronic " conversion to the two ways of optical signals that transmission comes, also
Original goes out two-way radiofrequency signal, and two-way radiofrequency signal is input to RF switch insert box, and RF switch insert box exports radiofrequency signal all the way；
Radiofrequency signal is input to the power splitter insert box of optical transmitter and receiver II all the way, and power splitter insert box exports two-way radiofrequency signal, is separately input into
Two-way light emitting insert box carries out " electrical-optical " conversion, exports two ways of optical signals, and two ways of optical signals is transmitted separately to light by optical cable
The two-way light-receiving insert box of terminal I, light-receiving insert box carry out " optical-electronic " conversion to the two ways of optical signals that transmission comes, restore two
Road radiofrequency signal, two-way radiofrequency signal are input to RF switch insert box, and RF switch insert box exports radiofrequency signal all the way；In this way,
Radiofrequency signal all the way is completed to be transmitted at a distance from optical transmitter and receiver I to the 1+1 hot backup of optical transmitter and receiver II with radiofrequency signal all the way by light end
Machine II transmits at a distance to the 1+1 hot backup of optical transmitter and receiver I.
It is only in summary a specific embodiment of the invention, designer can be according to the enlightenment of above-described embodiment not
Deviate and optimizes or improve under technical solution.
Claims (3)
1. a kind of multichannel ROF system is made of optical transmitter and receiver I, optical transmitter and receiver II and several optical cables, optical transmitter and receiver I and optical transmitter and receiver II are logical
Cross optical cable connection, it is characterised in that:
The optical transmitter and receiver I is identical with II structure of optical transmitter and receiver, by 1U cabinet (1), power supply insert box, main control unit, business insert box and
One piece of backboard composition, the business insert box includes light emitting insert box and light-receiving insert box；
The 1U cabinet (1) is made of structural member, guide rail and backboard, and provides two power supply slot positions, a main control unit slot position
With eight business insert box slot positions, a power supply insert box is set respectively at two power supply slot positions, is arranged at main control unit slot position
Main control unit is arranged eight light emitting insert boxes at eight business insert box slot positions of the 1U cabinet (1) of optical transmitter and receiver I or eight light connects
The combination of insert box or light emitting insert box and light-receiving insert box is received,
Eight light-receiving insert boxes are set at eight business insert box slot positions of the 1U cabinet (1) of optical transmitter and receiver II or eight light emittings are inserted
The combination of box or light-receiving insert box and light emitting insert box, business insert box slot position are compatible for light emitting insert box and light-receiving insert box；
The power supply insert box, main control unit and business insert box are connected by backboard, using I2C bus communication, and all heat is supported to insert
It pulls out；
The power supply insert box is made of electromagnetic interface filter, AC/DC power module, power supply combiner and hot-swapping controller；
AC220V power supply is after electromagnetic interface filter, into AC/DC power module, using power supply combiner and hot plug
Controller exports DC12V to backboard；Power supply combiner and hot-swapping controller are according to output DC12V voltage swing state, control
The high power supply insert box of output voltage provides the power supply of DC12V to backboard, when one of power supply insert box breaks down no electricity
When pressure output, power supply combiner and hot-swapping controller automatically control another power supply insert box and export DC12V to backboard, realize two
A power supply insert box hot plug and warm back-up, it is ensured that system reliably working；
The effect of power supply insert box is that AC220V is switched to DC12V, is that main control unit and business insert box are powered, and are realized by backboard
The warm back-up of system power supply power supply；
The backboard is passive backplane, receives power supply insert box DC12V power supply, is powered for main control unit and business insert box；
The main control unit is made of hot plug and electric power management circuit and system on chip ZYNQ；System on chip ZYNQ passes through I2C is total
It is communicated between line and each business insert box, realizes the state modulator and Working Status Monitoring to each business insert box；It also externally provides logical
LAN interface, GE interface, RS232 interface, RS485 interface and the 2.5G data transmission channel of letter, and provide and be based on keyboard and liquid crystal
The local man-machine interaction mode of display；
The light emitting insert box is by first order low noise LNA1, first order numerical-control attenuator ATT1, second level low noise LNA2,
Second level numerical-control attenuator ATT2, third level low noise LNA3, wave detector, laser LD, plug-and-play circuit and MCU control and LD drive
Dynamic circuit composition；
Radio frequency input passes sequentially through first order low noise LNA1, first order numerical-control attenuator ATT1, second level low noise LNA2, the
Second level numerical-control attenuator ATT2 and the third level low noise LNA3 input connect, the third level low noise LNA3 output respectively with wave detector
It inputs and connects with laser LD, laser LD output is connect with light output；
DC12V power input is connect with plug-and-play circuit, MCU control and LD driving circuit respectively with first order numerical-control attenuator
ATT1, second level numerical-control attenuator ATT2, wave detector, laser LD connection；MCU passes through I2C bus is led to main control unit
Letter, is further monitored the working condition of laser LD, completes the control and monitoring of radiofrequency signal conditioning unit, light emitting
Radio-frequency input signals has been carried out " electrical-optical " conversion by insert box；
The light-receiving insert box is by photoelectric conversion diode PD, first order low noise LNA1, first order numerical-control attenuator ATT1,
Second level low noise LNA2, second level numerical-control attenuator ATT2, wave detector, plug-and-play circuit and MCU control and PD driving circuit group
At；
Light input passes sequentially through photoelectric conversion diode PD, first order low noise LNA1, first order numerical-control attenuator ATT1, second
Grade low noise LNA2, second level numerical-control attenuator ATT2 input connection, second level numerical-control attenuator ATT2 output respectively with detection
Device and radio frequency output connection；
DC12V power input is connect with plug-and-play circuit, MCU control and PD driving circuit respectively with photoelectric conversion diode PD,
First order numerical-control attenuator ATT1, second level numerical-control attenuator ATT2, wave detector connection；
MCU passes through I2C bus is communicated with main control unit, further to the working condition and reception of photoelectric conversion diode PD
Optical power is monitored, and completes the control and monitoring of radiofrequency signal conditioning unit, and optical signal has been carried out " light-by light-receiving insert box
Electricity " conversion, reduces radiofrequency signal.
2. a kind of multichannel ROF system according to claim 1, it is characterised in that: the business insert box is inserted for power splitter
Box or RF switch insert box or downconverter box.
3. a kind of implementation method using multichannel ROF system described in claim 1, which is characterized in that steps are as follows: light end
There are two power supply insert box, a main control unit, eight light emitting insert boxes or eight light-receiving insert boxes, optical transmitter and receiver II to match for machine I configuration
Power supply insert box, a main control unit, eight light-receiving insert boxes or light emitting insert box there are two setting, by optical transmitter and receiver I and optical transmitter and receiver II
It is mounted respectively to two place A and B, A and two place B pass through eight optical cables for eight business insert boxes of optical transmitter and receiver I and optical transmitter and receiver II
It is respectively connected with, eight tunnel radiofrequency signals are separately input into eight light emitting insert boxes of optical transmitter and receiver I, carry out " electrical-optical " conversion, output eight
Road optical signal, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver II, light-receiving insert box by eight optical cables
" optical-electronic " conversion is carried out to transmission eight road optical signal of Lai, eight tunnel radiofrequency signals is restored, completes the long distance of eight tunnel radiofrequency signals
From eight light emitting insert boxes that transmission or eight tunnel radiofrequency signals are separately input into optical transmitter and receiver II, " electrical-optical " conversion, output are carried out
Eight road optical signals, eight road optical signals are transmitted separately to eight light-receiving insert boxes of optical transmitter and receiver I by optical cable, and light-receiving insert box is to biography
Defeated eight road optical signal of Lai carries out " optical-electronic " conversion, restores eight tunnel radiofrequency signals, completes the remote biography of eight tunnel radiofrequency signals
It is defeated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503936.0A CN109361463A (en) | 2018-12-10 | 2018-12-10 | A kind of multichannel ROF system and implementation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503936.0A CN109361463A (en) | 2018-12-10 | 2018-12-10 | A kind of multichannel ROF system and implementation method |
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| CN109361463A true CN109361463A (en) | 2019-02-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580228A (en) * | 2020-04-24 | 2020-08-25 | 武汉光迅科技股份有限公司 | Multichannel light emitting device for radio frequency optical transmission and manufacturing method |
| CN112350288A (en) * | 2019-08-09 | 2021-02-09 | 亚德诺半导体国际无限责任公司 | Communication terminal for hot-plug controller |
| CN113949457A (en) * | 2021-09-23 | 2022-01-18 | 中航光电科技股份有限公司 | Miniaturized multichannel high-isolation radio frequency optical transmission system |
| WO2023225915A1 (en) * | 2022-05-25 | 2023-11-30 | 京东方科技集团股份有限公司 | Optical relay device and signal transmission system |
| WO2024036782A1 (en) * | 2022-08-19 | 2024-02-22 | 张毅学 | Input device based on optical channels |
-
2018
- 2018-12-10 CN CN201811503936.0A patent/CN109361463A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350288A (en) * | 2019-08-09 | 2021-02-09 | 亚德诺半导体国际无限责任公司 | Communication terminal for hot-plug controller |
| CN112350288B (en) * | 2019-08-09 | 2024-03-12 | 亚德诺半导体国际无限责任公司 | Communication terminal for hot plug controller |
| CN111580228A (en) * | 2020-04-24 | 2020-08-25 | 武汉光迅科技股份有限公司 | Multichannel light emitting device for radio frequency optical transmission and manufacturing method |
| CN113949457A (en) * | 2021-09-23 | 2022-01-18 | 中航光电科技股份有限公司 | Miniaturized multichannel high-isolation radio frequency optical transmission system |
| WO2023225915A1 (en) * | 2022-05-25 | 2023-11-30 | 京东方科技集团股份有限公司 | Optical relay device and signal transmission system |
| WO2024036782A1 (en) * | 2022-08-19 | 2024-02-22 | 张毅学 | Input device based on optical channels |
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Application publication date: 20190219 |