CN106508099B - Vehicle-mounted high speed fibre Transmission system - Google Patents
Vehicle-mounted high speed fibre Transmission systemInfo
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- CN106508099B CN106508099B CN200910121707.7A CN200910121707A CN106508099B CN 106508099 B CN106508099 B CN 106508099B CN 200910121707 A CN200910121707 A CN 200910121707A CN 106508099 B CN106508099 B CN 106508099B
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Abstract
The invention discloses vehicle-mounted high speed fibre Transmission system, including optical cable, the outer optical transmitter and receiver of car and in-car optical transmitter and receiver.The outer optical transmitter and receiver of car：Receiving four road gigabit ethernet signals, three road bus signals (422 two-way, mono- tunnels of CAN) carries out electrical data signal to the conversion of optical signal；In-car optical transmitter and receiver：Receive optical signal and carry out opto-electronic conversion, restore electrical data signal, each port for being sent to outside is communicated；Optical cable：Inside and outside optical transmitter and receiver carries out the transmission medium of high-speed data communications.In the same manner, data can also be sent to the outer optical transmitter and receiver of car from in-car optical transmitter and receiver.Compared with prior art, its advantage is the present invention：Data photoelectricity, electro-optic conversion is achieved, the high-speed transfer of Large Volume Data improves interference free performance, and good environmental adaptability improves confidentiality and the safety of data transfer.
Description
Technical field
The present invention relates to optical communication field, a kind of vehicle-mounted high speed of high-speed high capacity data transfer is especially belonged to
Fibre-optic transmission system (FOTS).
Background technology
Developed rapidly along with car kits are information-based, the image of high-speed, data transfer demands are more next
It is more urgent, particular for the image information under the conditions of military by search radar, tracking radar, infrared thermal imagery
Instrument, television camera etc. are constituted, while also having voice, network and laser range finder etc. substantial amounts of on gun turret
Control information.High-rate digital transmission technology turns into " bottleneck " of high speed data transfers.
It is existing it is vehicle-mounted on data transfer include by search radar, tracking radar, thermal infrared imager, TV
The equipment such as video camera obtain the transmission of hdtv video image and network, laser range finder, rotation platform are watched
The transmission of a large amount of control data information such as clothes motion.Feature is that video image information amount is big (uncompressed
Multiway images information content is in more than 1G) and again can not possibly every equipment be fed directly to bottom with a designated lane
Various computers or display on disk.The data information transfer of current vehicle-mounted upper equipment is all to use cable
Line is transmitted communication, and the problem of it is present has：
1st, cable transmission interference free performance is poor；
2nd, cable connection is complicated, and its bit error rate of long-distance transmissions is high；
3rd, cable narrow bandwidth, reliability is relatively poor；
In order to carry out the information transfer of high-speed high capacity and improve the reliability of data transfer, in vehicular platform
Optimal solution is to use Highspeed Data Transmission Technology between (upper dress) and shelter (lower to fill), than
It is that this should be first to video image, voice, network, control information compression, fusion and transmission such as optic communication
Processing, changes compressed and fusion stream compression the form of Optical Fiber Transmission into, be achieved in that dress and under
The data transfer of high-speed high capacity between dress, after lower dress is to above- mentioned information decompression and multipath conversion, send
Corresponding control is shown or realized to respective display.Therefore, inventor proposes vehicle-mounted high speed fibre transmission
System, by the time-division multiplex technology of data, changes the stream compression of multi-path low speed into high speed serialization light letter
Number transmission, using wavelength-division multiplex/de-multiplexing technique, realize that multipath light signal is transmitted by unit cable, energy
Enough effective " bottlenecks " solved in high-speed digital signal transmission.To meet large-capacity data transmission and safety
Secrecy transmission.Online information retrieval is carried out to vehicle-mounted fibre-optic transmission system (FOTS), up to now, has no same or similar
Patented technology, do not find the report of similar techniques, be not yet collected into the money of domestic and international similar techniques yet
Material.
The content of the invention
The defect existed for prior art, the technical problem to be solved in the present invention is to provide vehicle-mounted high-speed light
Fine Transmission system, the problem of Transmission system effectively can meet large-capacity data transmission, can at a high speed,
High-performance realizes data transfer, improves interference free performance, safe and reliable.
During the design of the present invention：Inventor contemplates uses optical transmitter and receiver in vehicle-mounted fibre-optic transmission system (FOTS), uses up
Fine transmission technology realizes large-capacity data transmission.With the round-the-clock or lockon and follow under strong electromagnetic of energy
Target, ensures the normal work of vehicle electronic device information transfer in the presence of a harsh environment.For high-speed high capacity
The information transfer of data and the reliability that data transfer is provided, vehicular platform (upper dress) and shelter (under
Dress) between use optical communication Highspeed Data Transmission Technology, first information is compressed, merge and transmission at
The stream compression of reason, compression and fusion changes the form of Optical Fiber Transmission into, realizes high speed between upload and download
The data transfer of Large Copacity, it is lower dress above- mentioned information is decompressed and multipath conversion after, deliver to accordingly
Display is accordingly controlled, and is that by using vehicle-mounted high speed fibre Transmission system.
The vehicle-mounted high speed fibre Transmission system, using digital coding, passes through Optical Fiber Transmission form, bag
The outer optical transmitter and receiver of car, in-car optical transmitter and receiver are included, the outer optical transmitter and receiver of car carries out data encoding from external interface collection signal,
Parallel-serial conversion, then carries out the electro-optic conversion of data, and all data are sent in the form of light.
In-car optical transmitter and receiver receives data from optical cable, and carries out opto-electronic conversion, serioparallel exchange, decoding operate, then
Data are sent to each corresponding port of outside.The light number that transmission medium carries out Large Copacity is provided with optical fiber
According to transmission.
In order to solve the above technical problems, the vehicle-mounted high speed fibre Transmission system of the present invention, including light end outside car
Machine, in-car optical transmitter and receiver, optical fiber cable, wherein：
The outer optical transmitter and receiver of car or in-car optical transmitter and receiver, four ports of its side pass through gigabit ethernet signal line point
Not with ethernet device electric signal communication, separately have the signal of two-way 422 and all the way CAN signal respectively with outside
422 signals and CAN electric signal be connected；
The other end port of outer, the in-car optical transmitter and receiver of car is connected with optical fiber cable optical signal respectively.
The outer optical transmitter and receiver of described car or in-car optical transmitter and receiver include gigabit ethernet switch, three bus boards,
Wavelength division multiplexer/demultiplexer, Wavelength division multiplexer/demultiplexer respectively with gigabit ethernet switch and three buses
Board optical signal is connected.
Described gigabit ethernet switch includes isolating transformer, kilomega network exchanger, optical transceiver,
Kilomega network exchanger is connected with isolating transformer and optical transceiver electric signal respectively.
Three described bus boards include CAN transceiver, RS422 receivers, RS422 transmitters, FPGA
Field programmable gate array, optical transceiver, FPGA field programmable gate arrays respectively with CAN transceiver,
RS422 receivers, RS422 transmitters and the connection of optical transceiver electric signal.
The present invention is allowed to compared with prior art, with advantages below as a result of above technical scheme
And good effect：
1. using the existing cable transmission of fibre optic data transmission technical substitution, data photoelectricity, electricity are realized
Light is changed, and the high-speed transfer of Large Volume Data can transmit 2 road RS422 (485) signals, transmission rate
1Mbps.6 CAN node signals can be at least transmitted, transmission rate 500Kbps can transmitting two paths gigabit
Ethernet signal, transmission rate 100/1000M self adaptations；
2. application optical fiber, wavelength division multiplexer.The technologies such as optical module, field programmable gate array, make data
Transmission high speed and fine definition；
3. having gathered integrated, modularization, unitized design, device is compact, high precision, reliability
It is good with Electro Magnetic Compatibility；
4. improving interference free performance, good environmental adaptability improves the confidentiality and security of data transfer；
Brief description of the drawings
Below with reference to drawings and Examples, the invention will be further described.
Fig. 1 is the vehicle-mounted fibre-optic transmission system (FOTS) connection block diagram of the present invention；
Fig. 2 is the outer optical transmitter and receiver internal structure block diagram of car of the present invention；
Fig. 3 is the outer optical transmitter and receiver gigabit ethernet switch internal functional architecture figure of car of the present invention；
Fig. 4 is the outer bus board functional structure chart of optical transmitter and receiver three of car of the present invention；
Fig. 5 Wave division multiplexer/demultiplexers port and single-mode fiber connection figure.
Embodiment
Vehicle-mounted high speed fibre Transmission system is connected by optical transmitter and receiver, in-car optical transmitter and receiver outside car by an optical fiber cable
Connect.During work, the outer optical transmitter and receiver of car gathers four road gigabit ethernet signals, three road number of buses from external interface
According to (422 two-way, the tunnels of CAN mono-).Four road gigabit ethernet signals are direct by gigabit ethernet switch
Become optical signal all the way, and three road bus datas then first realize data using FPGA field programmable gate arrays
Parallel-serial conversion, coding (8b/10b) etc. are operated, and the electro-optic conversion operation for then carrying out data becomes all the way
Optical signal；Two ways of optical signals is multiplexed into progress light letter on optical fiber cable all the way finally by wavelength division multiplexer
Number transmission；In-car optical transmitter and receiver receives data from optical cable, and demultiplexes into two-way not using wavelength division multiplexer
The optical signal of co-wavelength, is sent to gigabit ethernet switch respectively and three bus data boards carry out photoelectricity and turned
Change；Optical signal into gigabit ethernet switch become and directly exported after electric signal；Into three buses
The optical signal of data board first carries out opto-electronic conversion and becomes electric signal, and the solution of data is then carried out using FPGA
Code, serioparallel exchange operation, then data be sent to outside each port.Vice versa for whole process, i.e.,
System can realize four road gigabit ethernet signals, three road bus datas (422 two-way, the tunnels of CAN mono-) simultaneously
The transmission of optical transmitter and receiver outside from in-car optical transmitter and receiver to car.
As shown in figure 1, the vehicle-mounted high speed fibre Transmission system connection block diagram of the present invention, wherein optical transmitter and receiver (car
It is outer and in-car) there are four tunnel gigabit ethernet ports, the signal port of two-way 422 and CAN port all the way respectively.
Each optical transmitter and receiver had and connected between a fiber port, two optical transmitter and receivers by optical cable L5.Optical cable L5
For single mode optical fiber cable for field operation, high-speed data is transmitted in systems, transmission range 20km.The outer optical transmitter and receiver of car and car
Interior optical transmitter and receiver is completely the same on principle, circuit structure, but the optical transceiver used on circuit-board card
Send that wavelength is different, the interface being connected with Wavelength division multiplexer/demultiplexer thus brought is inconsistent.Under
Selective analysis car outer optical transmitter and receiver in face is realized.
As shown in Fig. 2 the outer optical transmitter and receiver internal structure block diagram of the car of the present invention, it is mainly by 3 part groups
Into gigabit ethernet switch (U1), three bus boards (U2), Wavelength division multiplexer/demultiplexer (U3).
Gigabit ethernet switch is connected using single-mode fiber (L1 and L2) with Wavelength-division multiplexer/demultiplexer,
The 1470nm ripples of the 1510nm wavelength port connection of wherein L1 and wavelength division multiplexer, L2 and wavelength division multiplexer
Long port is connected；Three bus board cards are connected by single-mode fiber (L3 and L4) with wavelength division multiplexer, wherein
The 1490nm wavelength of the 1530nm wavelength port connection of L3 and wavelength division multiplexer, L4 and wavelength division multiplexer connects
Connect.
As shown in figure 3, gigabit ethernet switch internal functional architecture figure, completes 4 road gigabit Ethernets
Conversion of the power port signal to gigabit ethernet interface fiber-optic signal all the way.
Isolating transformer, for kilomega network exchanger with outside 4 road gigabit ethernet signal every information
Breath transmission, to protect kilomega network exchanger and other circuits from the influence of external voltage ripple.The present invention
In embodiment, the isolating transformer uses G24101MK chips.
Kilomega network exchanger, realizes the exchange of Protocol layer data, and complete 4 road LVDS differential pair signals
Physical layer conversion between YTW11, YTW22, YTW33, YTW44 to RX, TX.Kilomega network exchanger passes through
4 road LVDS differential pairs are connected with isolating transformer, and data can be realized simultaneously per road LVDS differential pairs
Send and receive；Kilomega network exchanger output PECL electric signals TX is connected with the transmitting terminal of optical transceiver 1,
The receiving terminal output PECL electric signals of optical transceiver 1 can be received simultaneously.In the embodiment of the present invention, this thousand
Million net exchangers use VETESS companies VSC7388 chips.
Optical transceiver 1, it completes PECL electric signals TX electro-optic conversion, TX electric signals is become wavelength
Sent for 1470nm optical signal, sending port is connected with single-mode fiber L2；It receives single in addition
Optical signal, by opto-electronic conversion, is converted into PECL electric signals by the 1510nm optical signals on mode fiber L1
RX.In the embodiment of the present invention, optical transceiver 1 moves the optical transceiver of company using Chengdu Network
NTR-3654VPT-1470。
As shown in figure 4, the three bus board functional structure charts of the present invention, complete the bus of two-way 422, one
The multiplexing of road CAN electric signal, coding, electro-optic conversion function；The light of optical signal all the way is completed simultaneously
Electricity conversion, decoding, demultiplexing function.
CAN transceiver, isolates with the data exchange and voltage of outside CAN subnet for FPGA, increases
Plus the effect of driving force.The differential ends (CAN_H and CAN_L) of transceiver and outside CAN subnet
Differential lines connection；Its TTL inputs T1 and output end R1 are connected with FPGA.The embodiment of the present invention
In, the transceiver uses UDF5243P chips.
RS422 receivers, the data sent on outside 2 road RS422 signal wires are received for FPGA,
Its function is differential signal is converted into TTL signal to give FPGA using.The differential ends 1R_H of receiving-transmitting device,
Differential lines of the 1R_L with 2R_H, 2R_L respectively with outside RS422 signals 1RX and 2RX are connected；Its TTL
Input R2 and R3 are connected with FPGA.In the embodiment of the present invention, the transceiver is using NI companies
DS26C32 chips.
RS422 transmitters, send data, its function is for FPGA to outside 2 road RS422 signal wires
TTL signal is converted into differential signal, and increases the effect of driving force.The differential ends 1T_H of transmitter,
Differential lines of the 1T_L with 2T_H, 2T_L respectively with outside RS422 signals 1TX and 2TX are connected；Its TTL
Input T2 and T3 are connected with FPGA.In the embodiment of the present invention, the transceiver is using NI companies
DS26C32 chips.
FPGA, full name is field programmable gate array, and it receives receipt from R1 ends, R2 ends, R3 ends,
3 road signal electric signals are converted into by parallel-serial conversion, 8b/10b coding techniques by high speed TTL telecommunications all the way
Number T4 gives optical transceiver 2；1 tunnel high-speed electrical signals R4 is received from optical transceiver 2 simultaneously, passes through 8b/10b
Decoding, serioparallel exchange technology resolve into 3 road low speed TTL electric signals T1, T2, T3 and are sent to CAN transmitting-receivings respectively
Device, RS422 transmitters.In the embodiment of the present invention, FPGA uses the LCMXO640 of Lattice companies
4T144I chips.
Optical transceiver 2, it completes TTL electric signals T4 electro-optic conversion, and T4 electric signals, which are become wavelength, is
1490nm optical signal is sent, and sending port is connected with single-mode fiber L4；It receives single-mode optics in addition
Optical signal, by opto-electronic conversion, is converted into TTL electric signals R4 by the 1530nm optical signals on fine L3.
In the embodiment of the present invention, the serial optical transceivers of NTR that optical transceiver 2 is moved using Chengdu Network
NTR-3654VPT-1490。
Parallel-serial conversion, 8b/10b codings in above-mentioned FPGA, serioparallel exchange, 8b/10b decoding functions make
Worked out with Verilog HDL language.
As shown in figure 5, Wavelength division multiplexer/demultiplexer port and the single-mode fiber connection figure of the present invention, its
In the outer optical transmitter and receiver of car, the transmitting terminal of optical transceiver (NTR-3654VPT-1470) connects ripple by single-mode fiber
Divide the 1470nm ports of multiplexing demultiplexing device, receiving terminal connects Wavelength division multiplexer/demultiplexer by single-mode fiber
1510nm ports；The transmitting terminal of optical transceiver (NTR-3654VPT-1490) connects ripple by single-mode fiber
Divide the 1490nm ports of multiplexer and demultiplexer, receiving terminal connects Wave division multiplexer/demultiplexer by single-mode fiber
1530nm ports.
In the car in optical transmitter and receiver, the transmitting terminal of optical transceiver (NTR-3654VPT-1510) passes through single-mode optics
Fibre connects the 1510nm ports of Wave division multiplexer/demultiplexer, and receiving terminal connects wavelength-division multiplex by single-mode fiber and demultiplexed
With the 1470nm ports of device；The transmitting terminal of optical transceiver (NTR-3654VPT-1530) passes through single-mode fiber
The 1530nm ports of Wave division multiplexer/demultiplexer are connect, receiving terminal connects wavelength-division multiplex by single-mode fiber and demultiplexed
The 1490nm ports of device.Its specific distribution can check table 1 below.
The Wave division multiplexer/demultiplexer wavelength of table 1 uses allocation table
In the embodiment of the present invention, Wave division multiplexer/demultiplexer is moved using Chengdu Network
CWDM-8-M-2-9-5-02-07-SP。
Obviously, those skilled in the art can be to the present invention, and a kind of vehicle-mounted high speed fibre Transmission system is entered
The various changes of row and deformation are without departing from the spirit and scope of the present invention.So, if these modifications and change
Shape belongs within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to include these
Including changing and deforming.
Claims (1)
1. vehicle-mounted high speed fibre Transmission system, it is characterised in that including optical transmitter and receiver outside car, in-car optical transmitter and receiver,
Optical fiber cable, wherein：
The outer optical transmitter and receiver of car is connected with in-car optical transmitter and receiver by an optical fiber cable；The outer optical transmitter and receiver of car or in-car light
Terminal, four ports of its side are connected with ethernet device electric signal respectively by gigabit ethernet signal line
It is logical, separately there are two-way RS422 signals and all the way the RS422 signal wires and CAN of CAN signal respectively with outside
Bus electric signal is connected；The outer optical transmitter and receiver of car, in-car optical transmitter and receiver other end port are believed with optical fiber cable light respectively
Number be connected；
The outer optical transmitter and receiver of described car or in-car optical transmitter and receiver include gigabit ethernet switch, three bus boards and
Wavelength division multiplexer/demultiplexer；Gigabit ethernet switch using single-mode fiber L1 and L2 and wavelength-division multiplex/
Demultiplexer is connected, and the 1510nm wavelength port of wherein single-mode fiber L1 and Wave decomposing multiplexer is connected,
The 1470nm wavelength port connection of single-mode fiber L2 and wavelength division multiplexer；Three bus board cards pass through single-mode optics
Fine L3 and L4 are connected with wavelength division multiplexer, wherein the 1530nm of single-mode fiber L3 and Wave decomposing multiplexer
Wavelength port is connected, and the 1490nm wavelength port of single-mode fiber L4 and wavelength division multiplexer is connected；
Described gigabit ethernet switch includes isolating transformer, kilomega network exchanger and optical transceiver；
Kilomega network exchanger is connected by 4 road LVDS differential pairs with isolating transformer, same per road LUDS differential pairs
Shi Shixian data send and receive；Isolating transformer be used for kilomega network exchanger and outside 4 tunnel gigabit with
The too isolation of net signal and signal transmission；Kilomega network exchanger exports PECL electric signals TX and optical transceiver
1 transmitting terminal connection, while the receiving terminal output PECL electric signals of optical transceiver 1 can be received；Light is received
The electro-optic conversion that device 1 completes PECL electric signals TX is sent out, it is 1470nm's that TX electric signals, which are become wavelength,
Optical signal is sent, and the sending port of optical transceiver 1 is connected with single-mode fiber L2, and receives single-mode fiber
Optical signal, by opto-electronic conversion, is converted into PECL electric signals RX by the 1510nm optical signals on L1；
Three described bus boards include CAN transceiver, RS422 receivers, RS422 transmitters, FPGA
Field programmable gate array and optical transceiver；CAN transceiver is used for FPGA and the data of outside CAN
Exchange and voltage isolation, its TTL output end R1 is connected with FPGA；RS422 receivers connect for FPGA
The data sent on outside 2 road RS422 signal wires are received, differential signal is converted into TTL signal and sent
Used to FPGA, its TTL output end R2, R3 is connected with FPGA respectively；RS422 transmitters are used for FPGA
Data are sent to outside 2 road RS422 signal wires, TTL signal is converted into differential signal；FPGA scenes
Programmable gate array receives data from R1 ends, R2 ends, R3 ends, and is compiled by parallel-serial conversion, 8b/10b
3 road electric signals are converted into high speed TTL electric signals T4 all the way and give optical transceiver 2 by code technology, while from
Optical transceiver 2 receives 1 tunnel high-speed electrical signals R4, is decoded by 8b/10b, serioparallel exchange technology is decomposed
Into 3 road low speed TTL electric signal T1, T2, T3, wherein T1 is sent to CAN transceiver, and T2, T3 are sent to
RS422 transmitters；Optical transceiver 2 completes TTL electric signals T4 electro-optic conversion, and T4 electric signals are become
Sent into wavelength for 1490nm optical signal, the sending port of optical transceiver 2 and single-mode fiber L4 phases
Even；Optical transceiver 2 receives the 1530nm optical signals on single-mode fiber L3, by opto-electronic conversion, light
Signal is converted into TTL electric signals R4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910121707.7A CN106508099B (en) | 2009-06-17 | 2009-06-17 | Vehicle-mounted high speed fibre Transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910121707.7A CN106508099B (en) | 2009-06-17 | 2009-06-17 | Vehicle-mounted high speed fibre Transmission system |
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| Publication Number | Publication Date |
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| CN106508099B true CN106508099B (en) | 2014-05-14 |
Family
ID=58359151
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910121707.7A Active CN106508099B (en) | 2009-06-17 | 2009-06-17 | Vehicle-mounted high speed fibre Transmission system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788736A (en) * | 2016-12-26 | 2017-05-31 | 北京电子工程总体研究所 | A kind of multifunctional optical fiber communicator based on PXI buses |
| CN108259863A (en) * | 2018-02-07 | 2018-07-06 | 中国电子科技集团公司第十研究所 | Airborn infrared image transmitting device |
| CN108599853A (en) * | 2018-06-21 | 2018-09-28 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | A kind of adaptive optic fiber distribution Transmission system |
| CN111865424A (en) * | 2020-05-25 | 2020-10-30 | 深圳市周立功单片机有限公司 | Automobile optical fiber Ethernet communication device |
| CN112994830A (en) * | 2021-02-08 | 2021-06-18 | 中车青岛四方机车车辆股份有限公司 | Vehicle-mounted network system based on optical fiber wavelength division multiplexing and transmission method |
| CN113067648A (en) * | 2021-03-29 | 2021-07-02 | 吉林大学 | Vehicle electric control system electromagnetic pulse protection method based on optical fiber network |
| CN113672550A (en) * | 2020-05-13 | 2021-11-19 | 华为技术有限公司 | Computing system, server and signal transmission method |
| CN114039809A (en) * | 2021-12-13 | 2022-02-11 | 成都奥瑞科电子科技有限公司 | CAN remote communication system based on optical transceiver |
| CN114142934A (en) * | 2021-12-06 | 2022-03-04 | 中国工程物理研究院应用电子学研究所 | Multi-platform combined optical communication system and method |
| CN114244386A (en) * | 2021-11-29 | 2022-03-25 | 中航光电科技股份有限公司 | Vehicle-mounted data communication optical transceiver |
| CN115208472A (en) * | 2022-06-24 | 2022-10-18 | 中航光电科技股份有限公司 | Data transmission system and data sending and receiving method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788736A (en) * | 2016-12-26 | 2017-05-31 | 北京电子工程总体研究所 | A kind of multifunctional optical fiber communicator based on PXI buses |
| CN108259863A (en) * | 2018-02-07 | 2018-07-06 | 中国电子科技集团公司第十研究所 | Airborn infrared image transmitting device |
| CN108599853A (en) * | 2018-06-21 | 2018-09-28 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | A kind of adaptive optic fiber distribution Transmission system |
| CN108599853B (en) * | 2018-06-21 | 2023-10-20 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Self-adaptive optical fiber distribution transmission system |
| CN113672550A (en) * | 2020-05-13 | 2021-11-19 | 华为技术有限公司 | Computing system, server and signal transmission method |
| CN111865424B (en) * | 2020-05-25 | 2022-01-11 | 深圳市周立功单片机有限公司 | Automobile optical fiber Ethernet communication device |
| CN111865424A (en) * | 2020-05-25 | 2020-10-30 | 深圳市周立功单片机有限公司 | Automobile optical fiber Ethernet communication device |
| CN112994830B (en) * | 2021-02-08 | 2023-01-03 | 中车青岛四方机车车辆股份有限公司 | Vehicle-mounted network system based on optical fiber wavelength division multiplexing and transmission method |
| CN112994830A (en) * | 2021-02-08 | 2021-06-18 | 中车青岛四方机车车辆股份有限公司 | Vehicle-mounted network system based on optical fiber wavelength division multiplexing and transmission method |
| CN113067648A (en) * | 2021-03-29 | 2021-07-02 | 吉林大学 | Vehicle electric control system electromagnetic pulse protection method based on optical fiber network |
| CN114244386A (en) * | 2021-11-29 | 2022-03-25 | 中航光电科技股份有限公司 | Vehicle-mounted data communication optical transceiver |
| CN114142934A (en) * | 2021-12-06 | 2022-03-04 | 中国工程物理研究院应用电子学研究所 | Multi-platform combined optical communication system and method |
| CN114142934B (en) * | 2021-12-06 | 2024-01-16 | 中国工程物理研究院应用电子学研究所 | Multi-platform combined optical communication system and method |
| CN114039809A (en) * | 2021-12-13 | 2022-02-11 | 成都奥瑞科电子科技有限公司 | CAN remote communication system based on optical transceiver |
| CN114039809B (en) * | 2021-12-13 | 2024-07-23 | 成都奥瑞科电子科技有限公司 | CAN long-distance communication system based on optical transceiver |
| CN115208472A (en) * | 2022-06-24 | 2022-10-18 | 中航光电科技股份有限公司 | Data transmission system and data sending and receiving method |
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