CN108155943A - A kind of optical fiber transmission trunking methods, devices and systems - Google Patents
A kind of optical fiber transmission trunking methods, devices and systems Download PDFInfo
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- CN108155943A CN108155943A CN201611111416.6A CN201611111416A CN108155943A CN 108155943 A CN108155943 A CN 108155943A CN 201611111416 A CN201611111416 A CN 201611111416A CN 108155943 A CN108155943 A CN 108155943A
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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
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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
- H04B10/2581—Multimode transmission
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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
- H04B10/29—Repeaters
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- Computer Networks & Wireless Communication (AREA)
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Abstract
A kind of optical fiber transmission trunking methods, devices and systems, are related to Fibre Channel technologies field, the method includes：The first multimode fibre signal that first optical-fibre communications node is sent is converted to single mode optical fiber signal to be transmitted；The single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.By the solution of the present invention, can realize " multimode->Single mode->The FC optical-fibre channels optical signal conversion of multimode ".It is responsible for the remote transmission in stage casing using single mode optical fiber, both ends connect laboratory FC communication equipments using multimode fibre interface.
Description
Technical field
The present invention relates to Fibre Channel technologies field, espespecially a kind of optical fiber transmission trunking methods, devices and systems.
Background technology
FC (Fibre Channel optical-fibre channels) has been widely used for electricity inside various types of aerospace vehicles at present
In sub- communications network system.
FC protocol networks be one that all round computer channel and data network concept propose be different from traditional channel and
The interconnection scheme of network structure.It is a kind of with high real-time, reliability, bandwidth, the open communication technology of cost performance, uses
Using exchanging or arbitrating ring topology processing medium access collision, net is controlled using credit policy for channel counts control signal transmission
Network flow.Its main feature is as follows：
1) using full-duplex high-speed serial bus interface；
2) it is 1.0625/2.125/4.25Gbps to commonly use rate, and can be with the upgrading of physical interface and transmission medium, energy
Reach the high bandwidth of 8/16Gbps；
3) transmission medium using wavelength 850nm multimode fibre or 1310nm single mode optical fiber, non-relay theoretical transmission away from
From 500m and 15km is respectively reached, has superelevation anti-electromagnetic interference capability；
4) bit error rate is better than 10-12, line transmission delay is better than 5us/km；
5) the effective passband ratio is high, is encoded using 8B/10B, and the load of frame data packet is maximum up to 2112Byte, and theory is effectively
Bandwidth is better than the 75% of port speed；
6) it supports point-to-point, arbitrates the multiple network topological structures such as ring, switching network, networking flexibility；
7) the whole network clock is supported to synchronize, clock synchronization accuracy is better than 0.1us；
8) upper-layer protocol type is enriched, and definition is complete.
FC network transmissions physical medium generally uses optical fiber.The optical fiber of unlike material is suitable for the lasing light emitter of different wave length,
Its transmission characteristic is also had nothing in common with each other.It applies at present there are two types of most optical fiber：The multimode fibre of transmission wavelength 850nm multi-mode lasers
With the single mode optical fiber of transmission wavelength 1310nm single-mode lasers.
The characteristics of multimode fibre is that transceiver power consumption is low, at low cost, is suitble to the communication interface of various airborne FC communication equipments,
It is FC Network Transfer Media forms most used in present each Research Center.But the attenuation of multimode fibre signal is very fast, longest
Theoretical transmission distance is 500m, and actual use is less than 300m, is only applicable to laboratory house wiring connection.
The characteristics of single mode optical fiber is that transceiver power consumption is higher, and cost is also higher, but long transmission distance, non-relay farthest reason
It is 15km by transmission range.Single mode optical fiber is widely used in civil field, is suitble to long distance (such as intercity) signal transmission through fiber.
In the outfield ground experiment scene of some airborne FC communication equipments, it often will appear the FC communications being in communication with each other and set
The distance between standby situation more than more than 1km, and it is mostly multimode fibre and multi-mode transceiver that FC communication equipments, which use, because
This signal needs repeatedly relaying just to can guarantee transmitting.And excessive handover number can lead to the fiber-optic signal bit error rate and transmission
The increase of delay.
Invention content
To solve the above-mentioned problems, the present invention proposes a kind of optical fiber transmission trunking methods, devices and systems, can realize
The fiber-optic signal repeaterless transmission of medium and long distance.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of optical fiber transmission trunking method, including：
The first multimode fibre signal that first optical-fibre communications node is sent is converted to single mode optical fiber signal to be transmitted；
The single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
Preferably, the first multimode fibre signal that the first optical-fibre communications node is sent is converted to single mode optical fiber signal to carry out
Transmission includes：
First electric signal is converted to the first multimode fibre signal；
It identifies the delimiter structure of first electric signal, and first electric signal is carried out according to the delimiter
Alignment of data processing；
By the first electric signal after the alignment of data into row buffering, the first electricity after being aligned is determined according to priority is sent
The buffer time of signal；
The first electric signal after the buffering is converted to single mode optical fiber signal to be transmitted.
Preferably, the single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second optical-fibre communications node
Including：
Single mode electric signal is converted to the single mode optical fiber signal；
It identifies the delimiter structure of the single mode electric signal, and the single mode electric signal is carried out according to the delimiter
Alignment of data processing；
By the single mode electric signal after the alignment of data into row buffering, the single mode electricity after alignment is determined according to priority is sent
The buffer time of signal；
Single mode electric signal after the buffering is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
In order to solve the above-mentioned technical problem, the invention also provides a kind of optical fiber transmission trunk devices, which is characterized in that packet
It includes：
First transmission trunking device is set as the first multimode fibre signal that the first optical-fibre communications node is sent being converted to list
Mode fiber signal is transmitted；
Second transmission trunking device is set as the single mode optical fiber signal being converted to the second multimode fibre signal transmission to
Two optical-fibre communications nodes.
Preferably, the first transmission trunking device includes：
First multi-mode optical interface is set as being converted to the first electric signal to the first multimode fibre signal；
First receives alignment of data module, is set as identifying the delimiter structure of first electric signal, and according to institute
It states delimiter and alignment of data processing is carried out to first electric signal；
First data buffering module is set as the first electric signal after the alignment of data into row buffering, according to transmission
Priority determines the buffer time of the first electric signal after alignment；
First single mode optical interface, is set as the first electric signal after the buffering being converted to single mode optical fiber signal and passes
It is defeated.
Preferably, the second transmission trunking device includes：
Second single mode optical interface is set as being converted to single mode electric signal to the single mode optical fiber signal；
Second receives alignment of data module, is set as identifying the delimiter structure of the single mode electric signal, and according to institute
It states delimiter and alignment of data processing is carried out to the single mode electric signal；
Second data buffering module is set as the single mode electric signal after the alignment of data into row buffering, according to transmission
Priority determines the buffer time of the single mode electric signal after alignment；
Second multi-mode optical interface is set as the single mode electric signal after the buffering being converted to the second multimode fibre signal transmission
To the second optical-fibre communications node.
In order to solve the above-mentioned technical problem, the invention also provides a kind of optical fiber transmission trunking systems, which is characterized in that packet
It includes：First optical-fibre communications node, optical fiber transmission trunk device and the second optical-fibre communications node；
The first optical-fibre communications node is arranged for the first multimode fibre signal transmission；
The optical fiber transmission trunk device is set as turning the first multimode fibre signal that the first optical-fibre communications node is sent
Single mode optical fiber signal is changed to be transmitted；The single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second light
Fine communication node；
The second optical-fibre communications node is arranged for the second multimode fibre signal transmission.
Compared with prior art, technical solution provided by the invention includes：
By the solution of the present invention, can realize " multimode->Single mode->The FC optical-fibre channels optical signal conversion of multimode ".
It is responsible for the remote transmission in stage casing using single mode optical fiber, both ends connect laboratory FC communication equipments using multimode fibre interface.This hair
Bright scheme carries out the conversion of single mode optical fiber signal and multimode fibre signal, while also to ensure signal quality, and elimination turns twice
The signal influence of fading that tape swapping comes.
Description of the drawings
The attached drawing in the embodiment of the present invention is illustrated below, the attached drawing in embodiment be for the present invention into one
Step understands, for explaining the present invention together with specification, does not form limiting the scope of the invention.
Fig. 1 is the flow chart of optical fiber transmission trunking method proposed by the present invention；
Fig. 2 is the structure diagram of the optical fiber transmission trunk device of the embodiment of the present invention；
Fig. 3 is the structure diagram of the optical fiber transmission trunking system of the embodiment of the present invention.
Specific embodiment
For the ease of the understanding of those skilled in the art, the invention will be further described below in conjunction with the accompanying drawings, not
It can be used for limiting the scope of the invention.It should be noted that in the absence of conflict, embodiment and reality in the application
The various modes applied in example can be combined with each other.
It is a kind of optical fiber transmission trunking method proposed by the present invention referring to Fig. 1, including：
S101, the first multimode fibre signal that the first optical-fibre communications node is sent is converted to single mode optical fiber signal and passed
It is defeated；
S102, the single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
Wherein, the first multimode fibre signal that the first optical-fibre communications node is sent is converted to single mode optical fiber letter by step S101
Number be transmitted including：
First electric signal is converted to the first multimode fibre signal；
It identifies the delimiter structure of first electric signal, and first electric signal is carried out according to the delimiter
Alignment of data processing；
By the first electric signal after the alignment of data into row buffering, the first electricity after being aligned is determined according to priority is sent
The buffer time of signal；
The first electric signal after the buffering is converted to single mode optical fiber signal to be transmitted.
Wherein, the single mode optical fiber signal is converted to the second multimode fibre signal transmission to the second optical fiber and led to by step S102
News node includes：
Single mode electric signal is converted to the single mode optical fiber signal；
It identifies the delimiter structure of the single mode electric signal, and the single mode electric signal is carried out according to the delimiter
Alignment of data processing；
By the single mode electric signal after the alignment of data into row buffering, the single mode electricity after alignment is determined according to priority is sent
The buffer time of signal；
Single mode electric signal after the buffering is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
Wherein, " delimiter structure " be fiber channel network protocol definition transmission trunking equipment be used for distinguish FC-2 frames with
The transmission character structure of primitive structure boundary.
It converts electrical signals to contain " driving " process during optical signal.
As shown in Fig. 2, the embodiment of the present invention also provides a kind of optical fiber transmission trunk device, including：
First transmission trunking device is set as the first multimode fibre signal that the first optical-fibre communications node is sent being converted to list
Mode fiber signal is transmitted；
Second transmission trunking device is set as the single mode optical fiber signal being converted to the second multimode fibre signal transmission to
Two optical-fibre communications nodes.
Wherein, the first transmission trunking device includes：
First multi-mode optical interface is set as being converted to the first electric signal to the first multimode fibre signal；
First receives alignment of data module, is set as identifying the delimiter structure of first electric signal, and according to institute
It states delimiter and alignment of data processing is carried out to first electric signal；
First data buffering module is set as the first electric signal after the alignment of data into row buffering, according to transmission
Priority determines the buffer time of the first electric signal after alignment；
First single mode optical interface, is set as the first electric signal after the buffering being converted to single mode optical fiber signal and passes
It is defeated.
Wherein, the second transmission trunking device includes：
Second single mode optical interface is set as being converted to single mode electric signal to the single mode optical fiber signal；
Second receives alignment of data module, is set as identifying the delimiter structure of the single mode electric signal, and according to institute
It states delimiter and alignment of data processing is carried out to the single mode electric signal；
Second data buffering module is set as the single mode electric signal after the alignment of data into row buffering, according to transmission
Priority determines the buffer time of the single mode electric signal after alignment；
Second multi-mode optical interface is set as the single mode electric signal after the buffering being converted to the second multimode fibre signal transmission
To the second optical-fibre communications node.
As shown in figure 3, the embodiment of the present invention also provides a kind of optical fiber transmission trunking system, including：First optical-fibre communications section
Point, optical fiber transmission trunk device and the second optical-fibre communications node；
The first optical-fibre communications node is arranged for the first multimode fibre signal transmission；
The optical fiber transmission trunk device is set as turning the first multimode fibre signal that the first optical-fibre communications node is sent
Single mode optical fiber signal is changed to be transmitted；The single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second light
Fine communication node；
The second optical-fibre communications node is arranged for the second multimode fibre signal transmission.
Embodiment one
As shown in Fig. 2, FC transmission trunking workflows are as follows：
1) single mode optical interface and multi-mode optical interface are in pairs, fixed to match；
2) every group of single mode optical interface fan-in is according to finally from the outflow of multi-mode optical interface output terminal, corresponding, multi-mode optical interface
Fan-in evidence will also be flowed out from single mode optical interface output terminal；
3) data include FC-2 frame data, and all primitive parts of single mode optical interface and multi-mode optical interface are then respectively independent；This reality
It applies the input of single mode optical interface and multi-mode optical interface in example and output belongs to same optical port；
4) input data of an optical port first carries out registration process, after effective delimiter structure of FC-2 frames is identified,
Into the data buffer zone of fifo structure, while submitted to another optical port and send application；
5) the FC-2 frames from another optical port are sent application and are sent with local primitive and applied by the present embodiment, are in time cut
It changes sendaisle and carrys out tissue local transmission data stream；
6) the present embodiment adjusts the transmitting-receiving rate parameter of two optical ports, to achieve the purpose that adjust linear speed according to configuration；
7) due to the input signal of two optical ports be all by optical-electronic, electrical-optical conversion after export again, both ends and
The optical signal of stage casing chain road can reach or all by driving again close to farthest transmission range.
Optical fiber transmission trunk device in the present embodiment, can realize the resynchronisations of FC signals, two-way turn of FC coding layers
It changes, the functions such as the transmission of the data buffering of FC data packets and important primitive sequence, FC data packets and important primitive sequence.
It should be noted that embodiment described above be for only for ease of it will be understood by those skilled in the art that, and
It is not used in and limits the scope of the invention, under the premise of the inventive concept for not departing from the present invention, those skilled in the art couple
Any obvious replacement and improvement that the present invention is made etc. are within protection scope of the present invention.
Claims (7)
- A kind of 1. optical fiber transmission trunking method, which is characterized in that including：The first multimode fibre signal that first optical-fibre communications node is sent is converted to single mode optical fiber signal to be transmitted；The single mode optical fiber signal is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
- 2. according to the method described in claim 1, it is characterized in that, the first multimode fibre that the first optical-fibre communications node is sent Signal be converted to single mode optical fiber signal be transmitted including：First electric signal is converted to the first multimode fibre signal；It identifies the delimiter structure of first electric signal, and data is carried out to first electric signal according to the delimiter Registration process；By the first electric signal after the alignment of data into row buffering, the first electric signal after being aligned is determined according to priority is sent Buffer time；The first electric signal after the buffering is converted to single mode optical fiber signal to be transmitted.
- 3. according to the method described in claim 1, it is characterized in that, the single mode optical fiber signal is converted into the second multimode fibre Signal transmission to the second optical-fibre communications node includes：Single mode electric signal is converted to the single mode optical fiber signal；It identifies the delimiter structure of the single mode electric signal, and data is carried out to the single mode electric signal according to the delimiter Registration process；By the single mode electric signal after the alignment of data into row buffering, the single mode electric signal after being aligned is determined according to priority is sent Buffer time；Single mode electric signal after the buffering is converted into the second multimode fibre signal transmission to the second optical-fibre communications node.
- 4. a kind of optical fiber transmission trunk device, which is characterized in that including：First transmission trunking device is set as the first multimode fibre signal that the first optical-fibre communications node is sent being converted to single-mode optics Optical fiber signaling is transmitted；Second transmission trunking device is set as the single mode optical fiber signal being converted to the second multimode fibre signal transmission to the second light Fine communication node.
- 5. device according to claim 4, which is characterized in that the first transmission trunking device includes：First multi-mode optical interface is set as being converted to the first electric signal to the first multimode fibre signal；First receives alignment of data module, is set as identifying the delimiter structure of first electric signal, and according to described fixed Boundary's symbol carries out alignment of data processing to first electric signal；First data buffering module is set as the first electric signal after the alignment of data into row buffering, preferential according to sending Grade determines the buffer time of the first electric signal after alignment；First single mode optical interface, is set as the first electric signal after the buffering being converted to single mode optical fiber signal and is transmitted.
- 6. device according to claim 4, which is characterized in that the second transmission trunking device includes：Second single mode optical interface is set as being converted to single mode electric signal to the single mode optical fiber signal；Second receives alignment of data module, is set as identifying the delimiter structure of the single mode electric signal, and according to described fixed Boundary's symbol carries out alignment of data processing to the single mode electric signal；Second data buffering module is set as the single mode electric signal after the alignment of data into row buffering, preferential according to sending Grade determines the buffer time of the single mode electric signal after alignment；Second multi-mode optical interface is set as the single mode electric signal after the buffering being converted to the second multimode fibre signal transmission to Two optical-fibre communications nodes.
- 7. a kind of optical fiber transmission trunking system, which is characterized in that including：First optical-fibre communications node, optical fiber transmission trunk device With the second optical-fibre communications node；The first optical-fibre communications node is arranged for the first multimode fibre signal transmission；The optical fiber transmission trunk device is set as being converted to the first multimode fibre signal that the first optical-fibre communications node is sent Single mode optical fiber signal is transmitted；The single mode optical fiber signal is converted to the second multimode fibre signal transmission to the second optical fiber to lead to Interrogate node；The second optical-fibre communications node is arranged for the second multimode fibre signal transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611111416.6A CN108155943B (en) | 2016-12-06 | 2016-12-06 | Optical fiber transmission relay method, device and system |
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|---|---|---|---|
| CN201611111416.6A CN108155943B (en) | 2016-12-06 | 2016-12-06 | Optical fiber transmission relay method, device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110072162A (en) * | 2019-04-26 | 2019-07-30 | 湖北三江航天万峰科技发展有限公司 | A kind of reliable single mode optical interface communication means and device |
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| CN108155943B (en) | 2021-01-08 |
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