CN109617605B - Optical path selector, optical fiber communication system and method - Google Patents
Optical path selector, optical fiber communication system and method Download PDFInfo
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- CN109617605B CN109617605B CN201811422096.5A CN201811422096A CN109617605B CN 109617605 B CN109617605 B CN 109617605B CN 201811422096 A CN201811422096 A CN 201811422096A CN 109617605 B CN109617605 B CN 109617605B
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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
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
- G02B6/3548—1xN switch, i.e. one input and a selectable single output of N possible outputs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
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- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
The invention discloses an optical path selector, which relates to the technical field of single-point mooring system communication and is used for selecting M optical paths with signal transmission from N core optical fibers, and comprises N1 × M optical switches, wherein each 1 × M optical switch is provided with 1 input end and M output ends, M1 × N optical switches, each 1 × N optical switch is provided with N input ends and 1 output end, the output ends of the 1 × M optical switches are connected with the input ends of the 1 × N optical switches through a preset mapping relation, and an optical switch switcher receives control signals and connects the input ends and the output ends of the optical switches.
Description
Technical Field
The invention relates to the technical field of single point mooring system communication, in particular to an optical path selector, an optical fiber communication system and an optical fiber communication method.
Background
The ocean nuclear power platform provides safe, reliable, economic and convenient energy supply for ocean resource development, has wide market application prospect, and has important significance for maintaining the ocean ownership of China and realizing ocean strong nations.
Because the operation environment of ocean nuclear power platform is in the marine environment who keeps away from the land, in order to have certain environmental suitability, guarantee the operation requirement under the marine environment, the technical means that commonly uses mostly sets up single-point mooring system on ocean nuclear power platform.
The submarine umbilical cable realizes interactive communication and energy transmission with the marine nuclear power platform through a single-point mooring system. In practical engineering applications, since the umbilical is generally laid last, the optical fiber having an optical signal in the optical fiber actually connected has uncertainty, and the optical fiber having an optical signal needs to be selected from a plurality of optical fibers.
In the prior art, workers generally test optical fibers on site, select optical fibers with optical signals, and connect the optical fibers with a single point mooring system. However, when the optical fiber with the signal needs to be changed, personnel is required to perform field test and connection again, the single-point mooring system generally belongs to an unattended platform, and the manual field test and connection method consumes manpower and material resources.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the optical path selector, the optical fiber communication system and the optical path communication method, which can select M optical fibers with optical signal transmission from N-core optical fibers without field test and connection of personnel and have good adaptability and compatibility.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: an optical path selector for selecting M optical paths for optical signal transmission from an N-core optical fiber, comprising:
n1 × M optical switches, wherein each 1 × M optical switch is provided with 1 input end and M output ends, N and M are positive integers, and N is more than M;
the output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation;
and an optical switch switcher for receiving a control signal, connecting an input terminal and an output terminal of the 1 × M optical switch, and connecting an input terminal and an output terminal of the 1 × N optical switch.
On the basis of the technical scheme, the output end of the 1 × M optical switch and the input end of the 1 × N optical switch are connected with the ith input end of the 1 × N optical switch through a preset mapping relation, wherein the jth output end of the ith 1 × M optical switch is connected with the ith input end of the jth 1 × N optical switch, i and j are positive integers, i is not less than N, and j is not less than M.
On the basis of the technical scheme, N is 4, and M is 2.
The present invention also provides an optical fiber communication system using the optical path selector, comprising:
a fixed deck junction box comprising, in combination,
-an optical path selector for selecting M optical paths for optical signal transmission from an N-core optical fiber, the optical path selector comprising:
-N1 × M optical switches, each of said 1 × M optical switches having 1 input and M outputs, where N and M are positive integers and N > M;
the output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation;
-a light switch receiving a control signal connecting the input and output of said 1 × M light switch and connecting the input and output of said 1 × N light switch;
a first wavelength division multiplexing device connected to the optical path selector, the first wavelength division multiplexing device being configured to convert M optical signals and 1 control signal input by the optical path selector into 1 composite optical signal for output, or convert 1 input composite optical signal into M optical signals and 1 control signal for output to the optical path selector;
the centralized control center comprises a central control center, a central control center and a central control center,
-a second wavelength division multiplexing device, connected to the first wavelength division multiplexing device, the second wavelength division multiplexing device converting the composite optical signal input by the first wavelength division multiplexing device into M optical signals and 1 control signal for output, or converting the M optical signals and 1 control signal input by the first wavelength division multiplexing device into 1 composite optical signal for output;
-a dispatch center connected to said second wavelength division multiplexing device for receiving or transmitting M optical signals and 1 control signal;
an optical slip ring for connecting the fixed deck junction box and the centralized control center.
On the basis of the technical scheme, the first wavelength division multiplexing device comprises M wavelength converters, 1 photoelectric converter and 1 wavelength division multiplexer, the wavelength converters are respectively connected with the 1 × N optical switches, the photoelectric converters are connected with the optical switch switcher, and the wavelength converters and the photoelectric converters are both connected with the wavelength division multiplexers.
On the basis of the above technical solution, the first wavelength division multiplexing device is configured to convert the M optical signals and 1 control signal input by the optical path selector into 1 spare composite optical signal and output the spare composite optical signal.
On the basis of the technical scheme, the fixed deck junction box is also provided with a first main control unit and first network transmission equipment, and the first main control unit is respectively connected with the first network transmission equipment;
the centralized control center is also provided with a third main control unit and fourth network transmission equipment, and the third main control unit is connected with the fourth network transmission equipment; the fourth network transmission device and the first network transmission device are connected through the smooth ring.
On the basis of the technical scheme, a rotary deck junction box is further arranged between the smooth ring and the centralized control center, the rotary deck junction box is provided with a second main control unit, second network transmission equipment and third network transmission equipment, and the second main control unit is respectively connected with the second network transmission equipment and the third network transmission equipment; the second network transmission equipment is connected with the first network transmission equipment through the optical slip ring; the third network transmission device is connected with a fourth network transmission device.
On the basis of the technical scheme, the optical slip ring and the rotary deck junction box are connected with the centralized control center through optical path switching equipment.
The present invention also provides a communication method of the above optical fiber communication system, including the following steps:
arranging and combining each connection mode of N1 × M optical switches and each connection mode of M1 × N optical switches in the optical path selector to form a command set containing a plurality of commands, wherein each command is one connection mode of N1 × M optical switches and M1 × N optical switches;
and traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output M optical signals.
Compared with the prior art, the invention has the advantages that: the optical path selector is used for communication between the submarine optical fiber and the ocean platform, can select M optical paths with optical signal transmission from the N-core optical fiber without on-site testing and connection of personnel under the condition that the optical fiber with the optical signal is uncertain or when the fiber core with the signal is converted, and has good adaptability and compatibility and good economic benefit.
Drawings
FIG. 1 is a schematic diagram of an optical fiber communication system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical path selector according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another optical path selector in an embodiment of the present invention;
fig. 4 is a schematic diagram of a first wavelength division multiplexing device in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example one
Referring to fig. 2, an embodiment of the present invention provides an optical path selector, configured to select M optical paths for signal transmission from an N-core optical fiber, including:
n1 × M photoswitches, each 1 × M photoswitch is provided with 1 input end and M output ends, wherein N and M are positive integers, and N is more than M.
The output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation, wherein the optional mapping relation is that the jth output end of the ith 1 × M optical switch is connected with the ith input end of the jth 1 × N optical switch, i and j are positive integers, i is less than or equal to N, and j is less than or equal to M.
And an optical switch switcher which receives the control signal, and connects the input terminal and the output terminal of the 1 × M optical switch, and connects the input terminal and the output terminal of the 1 × N optical switch.
Compared with the prior art, the optical path selector of the embodiment of the invention comprises the following components: the optical fiber coupler is used for communication between the submarine optical fiber and an ocean platform, can select M optical paths with optical signal transmission from N-core optical fibers without on-site testing and connection of personnel under the condition that the optical fiber with optical signals is uncertain or when the optical fiber with signals is converted, and has good adaptability and compatibility and good economic benefit.
Example two
As shown in fig. 3, in the technique of the first embodiment, N may be selected to be 4, and M may be selected to be 2.
4 1 × 2 optical switches, each 1 × 4 optical switch having 1 input and 2 outputs.
2 1 × 4 optical switches, each 1 × 4 optical switch has 2 inputs and 1 output, the output of 1 × 2 optical switch is connected with the input of 1 × 4 optical switch by preset mapping relation, as shown in the figure.
And an optical switch switcher which receives the control signal, and connects the input terminal and the output terminal of the 1 × 2 optical switch, and connects the input terminal and the output terminal of the 1 × 4 optical switch.
The optical path selector is operated by arranging and combining each connection mode of 4 1 × 2 optical switches and each connection mode of 2 1 × 4 optical switches in the optical path selector to form a command set containing a plurality of commands, wherein each command is one connection mode of 4 1 × 2 optical switches and 2 1 × 4 optical switches, for example, A1B1C1D1E1F1 is one combination of the two, which shows that the optical switch of A is in the connection position No. 1, the optical switch of B is in the connection position No. 1, the optical switch of C is in the connection position No. 1, the optical switch of D is in the connection position No. 1, the optical switch of E is in the connection position No. 1, and the optical switch of F is in the connection position No. 1.
And traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output 2 paths of optical signals. For example, the current instruction set is A1B1C2D1E1F3, and 2 optical paths for signal transmission are selected from the 4-core fiber.
EXAMPLE III
As shown in fig. 1, an embodiment of the present invention provides an optical fiber communication system using an optical path selector, including:
a fixed deck junction box comprising, in combination,
-an optical path selector for selecting M optical paths for signal transmission from the N-core fiber, the optical path selector comprising:
-N1 × M optical switches, each 1 × M optical switch having 1 input and M outputs, where N and M are positive integers and N > M;
the output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation;
-an optical switch receiving a control signal connecting the input and output of the 1 × M optical switch and connecting the input and output of the 1 × N optical switch;
the optical path selector is used for converting M optical signals and 1 control signal input by the optical path selector into 1 composite optical signal to be output, or converting 1 composite optical signal input by the optical path selector into M optical signals and 1 control signal to be output to the optical path selector, as shown in FIG. 4, the first wavelength division multiplexing device comprises M wavelength converters, 1 optical-to-electrical converter and 1 wavelength division multiplexer, the wavelength converters are respectively connected with 1 × N optical switches, the optical-to-electrical converters are connected with the optical switch switcher, and the wavelength converters and the optical-to-electrical converters are both connected with the wavelength division multiplexers.
The centralized control center comprises a central control center, a central control center and a central control center,
-a second wavelength division multiplexing device, connected to the first wavelength division multiplexing device, the second wavelength division multiplexing device converting the composite optical signal input by the first wavelength division multiplexing device into M optical signals and 1 control signal for output, or converting the M optical signals and 1 control signal input into 1 composite optical signal for output;
-a dispatch center connected to the second wavelength division multiplexing device for receiving or transmitting the M optical signals and the 1 control signal;
and the optical slip ring is used for connecting the fixed deck junction box with the centralized control center.
Compared with the prior art, the optical fiber communication system of the embodiment of the invention comprises the following components: the optical fiber coupler is used for communication between a submarine optical fiber and a centralized control center of an ocean platform, can select M optical paths with optical signal transmission from N-core optical fibers without on-site testing and connection of personnel under the condition that the fiber core with optical signals is uncertain or when the fiber core with signals is converted, and has good adaptability and compatibility and good economic benefit.
Example four
As a preferred implementation manner, in the technology of the third embodiment, the first wavelength division multiplexing device is configured to convert the M optical signals and 1 control signal input by the optical path selector into 1 spare composite optical signal for output, so as to increase a redundancy design and improve the reliability of the system.
EXAMPLE five
As a preferred implementation manner, in the third embodiment, the fixed deck junction box is further provided with a first main control unit and first network transmission equipment, and the first main control unit is respectively connected with the first network transmission equipment;
the centralized control center is also provided with a third main control unit and fourth network transmission equipment, and the third main control unit is connected with the fourth network transmission equipment; the fourth network transmission device and the first network transmission device are connected by a smooth ring.
A rotary deck junction box is also arranged between the smooth ring and the centralized control center, the rotary deck junction box is provided with a second main control unit, second network transmission equipment and third network transmission equipment, and the second main control unit is respectively connected with the second network transmission equipment and the third network transmission equipment; the second network transmission equipment is connected with the first network transmission equipment through the optical slip ring; the third network transmission device is connected with the fourth network transmission device.
The optical slip ring and the rotating deck junction box are connected with the centralized control center through the optical path switching equipment.
The first main control unit of the fixed deck junction box is connected with equipment needing communication on the fixed deck, the second main control unit of the rotating deck junction box is connected with equipment needing communication on the rotating deck, the first main control unit, the second main control unit and the third main control unit form an Ethernet through first network transmission equipment, second network transmission equipment, third network transmission equipment and fourth network transmission equipment, the Ethernet is independent of submarine optical fiber communication, and safe isolation transmission of information is achieved.
EXAMPLE six
The embodiment of the invention provides a communication method using the optical fiber communication system, which comprises the following steps:
arranging and combining each connection mode of N1 × M optical switches and each connection mode of M1 × N optical switches in the optical path selector to form a command set containing a plurality of commands, wherein each command is one connection mode of N1 × M optical switches and M1 × N optical switches;
and traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output M optical signals.
A combination of 4 optical switches of 1 × 2 and 2 optical switches of 1 × 4 in the optical path selector is arranged to form a command set containing a plurality of commands, each command being one of 4 optical switches of 1 × 2 and 2 optical switches of 1 × 4, for example, A1B1C1D1E1F1 is one of the combinations, which shows that the optical switch of A is in the connection position No. 1, the optical switch of B is in the connection position No. 1, the optical switch of C is in the connection position No. 1, the optical switch of D is in the connection position No. 1, the optical switch of E is in the connection position No. 1, and the optical switch of F is in the connection position No. 1.
And traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output 2 paths of optical signals. For example, the current instruction set is A1B1C2D1E1F3, and 2 optical paths for signal transmission are selected from the 4-core fiber.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (9)
1. An optical path selector for selecting M optical paths for optical signal transmission from an N-core optical fiber, comprising:
n1 × M optical switches, wherein each 1 × M optical switch is provided with 1 input end and M output ends, N and M are positive integers, and N is more than M;
the output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation;
an optical switch switcher receiving a control signal, connecting an input terminal and an output terminal of the 1 × M optical switch, and connecting an input terminal and an output terminal of the 1 × N optical switch;
the optical path selector has the working mode that each connection mode of N1 × M optical switches and each connection mode of M1 × N optical switches in the optical path selector are arranged and combined to form an instruction set containing a plurality of instructions, and each instruction is one connection mode of N1 × M optical switches and M1 × N optical switches;
and traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output M optical signals.
2. The optical path selector as claimed in claim 1, wherein the output terminal of the 1 × M optical switch and the input terminal of the 1 × N optical switch are mapped according to a predetermined mapping relationship:
the jth output end of the ith 1 × M optical switch is connected with the ith input end of the jth 1 × N optical switch, wherein i and j are positive integers, i is not less than N, and j is not less than M.
3. The optical path selector as set forth in claim 1, wherein: n is 4, and M is 2.
4. A fiber optic communication system using an optical path selector, comprising:
a fixed deck junction box comprising, in combination,
-an optical path selector for selecting M optical paths for signal transmission from an N-core fiber, the optical path selector comprising:
-N1 × M optical switches, each of said 1 × M optical switches having 1 input and M outputs, where N and M are positive integers and N > M;
the output end of the 1 × M optical switch is connected with the input end of the 1 × N optical switch through a preset mapping relation;
-a light switch receiving a control signal connecting the input and output of said 1 × M light switch and connecting the input and output of said 1 × N light switch;
a first wavelength division multiplexing device connected to the optical path selector, the first wavelength division multiplexing device being configured to convert M optical signals and 1 control signal input by the optical path selector into 1 composite optical signal for output, or convert 1 input composite optical signal into M optical signals and 1 control signal for output to the optical path selector;
the centralized control center comprises a central control center, a central control center and a central control center,
-a second wavelength division multiplexing device, connected to the first wavelength division multiplexing device, the second wavelength division multiplexing device converting the composite optical signal input by the first wavelength division multiplexing device into M optical signals and 1 control signal for output, or converting the M optical signals and 1 control signal input by the first wavelength division multiplexing device into 1 composite optical signal for output;
-a dispatch center connected to said second wavelength division multiplexing device for receiving or transmitting M optical signals and 1 control signal;
an optical slip ring for connecting the fixed deck junction box and the centralized control center;
the optical path selector has the working mode that each connection mode of N1 × M optical switches and each connection mode of M1 × N optical switches in the optical path selector are arranged and combined to form an instruction set containing a plurality of instructions, and each instruction is one connection mode of N1 × M optical switches and M1 × N optical switches;
and traversing the instructions of the instruction set in sequence, controlling the connection mode of an optical switch in the optical path selector, and stopping traversing the instruction set when one instruction enables the optical path selector to output M optical signals.
5. A fiber optic telecommunications system according to claim 4, wherein:
the first wavelength division multiplexing device comprises M wavelength converters, 1 photoelectric converter and 1 wavelength division multiplexer, wherein the wavelength converters are connected with the 1 × N optical switch, the photoelectric converters are connected with the optical switch switcher, and the wavelength converters and the photoelectric converters are connected with the wavelength division multiplexer.
6. A fiber optic telecommunications system according to claim 4, wherein:
the first wavelength division multiplexing device is further configured to convert the M optical signals and the 1 control signal input by the optical path selector into 1 spare composite optical signal and output the spare composite optical signal.
7. A fiber optic telecommunications system according to claim 4, wherein:
the fixed deck junction box is also provided with a first main control unit and first network transmission equipment, and the first main control unit is respectively connected with the first network transmission equipment;
the centralized control center is also provided with a third main control unit and fourth network transmission equipment, and the third main control unit is connected with the fourth network transmission equipment; the fourth network transmission device and the first network transmission device are connected through the smooth ring.
8. A fiber optic telecommunications system according to claim 4, wherein:
a rotary deck junction box is further arranged between the smooth ring and the centralized control center, the rotary deck junction box is provided with a second main control unit, second network transmission equipment and third network transmission equipment, and the second main control unit is respectively connected with the second network transmission equipment and the third network transmission equipment; the second network transmission equipment is connected with the first network transmission equipment through the optical slip ring; the third network transmission device is connected with a fourth network transmission device.
9. A fiber optic telecommunications system according to claim 8, wherein:
the optical slip ring and the rotating deck junction box are connected with the centralized control center through optical path switching equipment.
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| CN203014816U (en) * | 2012-12-27 | 2013-06-19 | 中国电子科技集团公司第三十四研究所 | Optical path monitoring N*M matrix optical switch system |
| CN104837080A (en) * | 2015-04-27 | 2015-08-12 | 上海交通大学 | Input end ring network-based optical switching matrix fault tolerant system and fault tolerance method thereof |
| CN106230499A (en) * | 2016-07-26 | 2016-12-14 | 桂林聚联科技有限公司 | A kind of fiber optic cable monitor device of tree-shaped fiber cable network |
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| US9268087B2 (en) * | 2013-03-13 | 2016-02-23 | M2 Optics, Inc. | Apparatus for selective fiber optical channel monitoring and channel replication of wavelength division multiplexed (WDM) signals |
| CN104601228A (en) * | 2015-02-04 | 2015-05-06 | 苏州萤石光电科技有限公司 | System and method for positioning PON network optical fiber link failures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203014816U (en) * | 2012-12-27 | 2013-06-19 | 中国电子科技集团公司第三十四研究所 | Optical path monitoring N*M matrix optical switch system |
| CN104837080A (en) * | 2015-04-27 | 2015-08-12 | 上海交通大学 | Input end ring network-based optical switching matrix fault tolerant system and fault tolerance method thereof |
| CN106230499A (en) * | 2016-07-26 | 2016-12-14 | 桂林聚联科技有限公司 | A kind of fiber optic cable monitor device of tree-shaped fiber cable network |
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