CN114584206A - Optical fiber line protection system - Google Patents
Optical fiber line protection system Download PDFInfo
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- CN114584206A CN114584206A CN202210455297.5A CN202210455297A CN114584206A CN 114584206 A CN114584206 A CN 114584206A CN 202210455297 A CN202210455297 A CN 202210455297A CN 114584206 A CN114584206 A CN 114584206A
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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
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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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
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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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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Abstract
The application discloses optical fiber line protection system relates to the optical communication field. The technical problem that this application was solved can not discover the fiber circuit trouble through detecting optical signal for current fiber circuit automatic switch-over protection equipment, switches fiber circuit and makes fiber circuit obtain the protection. The optical fiber line switching protection device is mainly provided with an optical transceiver, a main optical fiber, a standby optical fiber and an optical fiber line automatic switching protection device. The automatic switching protection device for the optical fiber circuit comprises a first optical power detection module and a second optical power detection module. When the optical transceiver module detects that the test optical signals transmitted by the first optical power detection module and the second optical power detection module are abnormal, the optical fiber line is switched from the primary optical fiber to the standby optical fiber. The optical transmitting module transmits the optical signal to the standby optical fiber through the first optical switch. At this time, the second optical switch is also changed, and the spare optical fiber transmits the optical signal to the optical receiving module through the second optical switch. The protection device is mainly used for protecting the optical fiber circuit.
Description
Technical Field
The present application relates to the field of optical communications, and in particular, to an optical fiber line protection system.
Background
An automatic protection system for optical fiber line is a light collecting, electric and mechanical integrated system, relating to the technology of photoelectric conversion, analog-to-digital conversion, microcontroller, optical path switching and network communication. The switching protection function can be realized by combining the technologies in a system. Nowadays, there are many manufacturers of communication equipment and research institutions related to the optical communication industry, which have been studied at home and abroad.
However, the existing automatic switching protection device for the optical fiber line cannot directly switch the primary optical fiber and the backup optical fiber by detecting optical signals.
In view of the technical problem that the conventional automatic switching protection device for an optical fiber circuit in the prior art cannot find a fault of the optical fiber circuit by detecting an optical signal, switch the optical fiber circuit and protect the optical fiber circuit, an effective solution is not provided at present.
Disclosure of Invention
The utility model provides an optical fiber circuit to at least, solve the technical problem that current optical fiber circuit automatic switch-over protection equipment that exists can not discover optical fiber circuit trouble through detecting optical signal among the prior art, switch optical fiber circuit and make optical fiber circuit obtain the protection.
According to an aspect of the present application, there is provided a fiber circuit protection system including: the optical fiber line protection system comprises an optical transceiver device, a primary optical fiber and a backup optical fiber, wherein the optical transceiver device is respectively connected with the primary optical fiber and the backup optical fiber, the optical transceiver device comprises an optical transmitting module and an optical receiving module, the optical fiber line protection system further comprises an optical fiber line automatic switching protection device respectively connected with the optical transceiver device, the primary optical fiber and the backup optical fiber, and the optical fiber line automatic switching protection device comprises: the optical transceiver module comprises a first optical power detection module, a second optical power detection module, an optical transceiver module, a first optical switch, a second optical switch and a controller module, wherein the controller module is respectively connected with the first optical switch, the second optical switch, the first optical power detection module and the second optical power detection module; one end of the first optical power detection module is connected with the first optical switch, and the other end of the first optical power detection module is connected with the primary optical fiber; one end of the second optical power detection module is connected with the second optical switch, and the other end of the second optical power detection module is connected with the optical receiving module; the first optical switch is connected with the light emitting module and the light receiving and transmitting module; the second optical switch is connected with the primary optical fiber and the standby optical fiber; and the optical transceiver module is respectively connected with the first optical switch and the controller module.
Therefore, the technical problem in the prior art is solved through the technical scheme of the embodiment, and the embodiment is suitable for the field of optical communication, in particular to an optical fiber line protection system, and has the following advantages:
1. the optical fiber line protection system provided by the invention can automatically switch the primary optical fiber and the standby optical fiber by detecting optical signals;
2. the optical fiber line protection system provided by the invention adopts a 1: 1 protection mode, and when the primary optical fiber is not in fault, the standby line can transmit signals different from the primary optical fiber, so that the utilization rate of the optical cable is improved;
3. the optical fiber line protection system provided by the invention is provided with the wavelength conversion control module, so that the standby optical fiber works while the main optical fiber works normally, and the utilization rate of the standby optical fiber is increased;
4. the optical fiber line protection system provided by the invention has reduced limitation in function and application, thereby having commercial value.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural diagram of a primary optical fiber of an optical fiber line protection system according to an embodiment of the present application during normal operation;
FIG. 2 is a schematic diagram of a configuration for switching to a spare fiber for a fiber circuit protection system according to one embodiment of the present application;
FIG. 3 is a schematic diagram of the internal structure of a first optical power detection module of the fiber circuit protection system according to one embodiment of the present application;
FIG. 4 is a schematic diagram of the internal structure of a second optical power detection module of the fiber circuit protection system according to one embodiment of the present application;
FIG. 5 is a schematic diagram of the internal structure of a third optical power detection module of the fiber circuit protection system according to one embodiment of the present application;
fig. 6 is a schematic diagram of an internal structure of a fourth optical power detection module of the fiber circuit protection system according to an embodiment of the present application.
Detailed Description
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing the embodiments of the disclosure herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
According to one aspect of the present application, a fiber optic line protection system is provided. Fig. 1 shows a schematic structural diagram of a primary optical fiber of an optical fiber line during normal operation according to an embodiment of the present application, and fig. 2 shows a schematic structural diagram of a fiber line protection system according to an embodiment of the present application, switching to a spare optical fiber. Referring to fig. 1 and 2, an optical fiber line protection system includes: the optical transceiver device 10 is connected to the primary optical fiber 30 and the backup optical fiber 40, the optical transceiver device 10 includes an optical transmitter module 101 and an optical receiver module 102, and the optical fiber line protection system further includes an optical fiber line automatic switching protection device 20 connected to the optical transceiver device 10, the primary optical fiber 30 and the backup optical fiber 40, wherein the optical fiber line automatic switching protection device 20 includes: the optical transceiver module comprises a first optical power detection module 211, a second optical power detection module 212, an optical transceiver module 220, a first optical switch 231, a second optical switch 232, and a controller module 240, wherein the controller module 240 is connected to the first optical switch 231, the second optical switch 232, the first optical power detection module 211, and the second optical power detection module 212, respectively; one end of the first optical power detection module 211 is connected to the first optical switch 231, and the other end is connected to the primary optical fiber 30; one end of the second optical power detection module 212 is connected to the second optical switch 232, and the other end is connected to the optical receiving module 102; the first optical switch 231 is connected with the optical transmitting module 101 and the optical transceiving module 220; the second optical switch 232 is connected with the primary optical fiber 30 and the spare optical fiber 40; and the optical transceiver module 220 is connected to the first optical switch 231 and the controller module 240, respectively.
As described in the background art, the existing automatic switching protection device for an optical fiber line cannot directly switch the primary optical fiber and the backup optical fiber by detecting an optical signal.
To solve the technical problem, the present embodiment provides an optical fiber line protection system. The optical fiber line protection system mainly comprises an optical fiber line automatic switching protection device 20. The optical fiber line automatic switching protection device 20 includes a first optical power detection module 211, a second optical power detection module 212, an optical transceiver module 220, a first optical switch 231, a second optical switch 232, and a controller module 240. The first optical switch 231 and the second optical switch 232 are both 2 × 2 optical switches. The first optical power detection module 211 can divide the optical signal transmitted by the optical transmission module 101 into a test optical signal and a communication optical signal. The second optical power detection module 212 can divide the optical signal transmitted by the primary optical fiber 30 into a test optical signal and a communication optical signal. The optical transceiver module 220 not only can realize the interconversion between the optical signal and the electrical signal, but also can detect the converted test optical signal. The controller module 240 sends a control instruction according to the detection result, and if the primary optical fiber 30 fails, the line is switched, and the backup optical fiber 40 replaces the primary optical fiber 30 to operate.
Referring to fig. 1, when the primary optical fiber 30 works normally, the optical transmitting module 101 transmits an optical signal to the first optical power detecting module 211 through the first optical switch 231, and the primary optical fiber 30 transmits an optical signal to the second optical power detecting module 212 through the second optical switch 232. The first optical power detection module 211 divides the optical signal into a test optical signal and a communication optical signal, and the second optical power detection module 212 also divides the optical signal into a test optical signal and a communication optical signal. The communication optical signal split by the first optical power detection module 211 is transmitted to the primary optical fiber 30, and the communication optical signal split by the second optical power detection module 212 is transmitted to the optical reception module 102.
The first optical power detection module 211 converts the test optical signal and transmits the converted test optical signal to the controller module 240. The second optical power detection module 212 converts the test optical signal and transmits the converted test optical signal to the controller module 240. The controller module 240 transmits the converted test optical signal to the optical transceiver module 220, and the optical transceiver module 220 detects the converted test optical signal. The optical transceiver module 220 transmits the detection result to the controller module 240, and the controller module 240 sends a control command.
If the optical transceiver module 220 detects that the test optical signal transmitted by the first optical power detection module 211 and the second optical power detection module 212 is abnormal, the optical fiber line is switched from the primary optical fiber 30 to the backup optical fiber 40. Referring to fig. 2, the optical transmitting module 101 transmits an optical signal to the backup optical fiber 40 through the first optical switch 231. At this time, the second optical switch 232 is also changed, and the spare optical fiber 40 transmits the optical signal to the light receiving module 102 through the second optical switch 232. When the maintenance personnel have repaired the fault of the primary optical fiber 30, the optical transceiver module 220 detects the primary optical fiber 30 again. If the detection result is normal, the first optical switch 231 changes, and the primary optical fiber 30 is switched to the optical fiber line again. If the detection result is still abnormal, the first optical switch 231 is not changed, and the spare optical fiber 40 is still used as an optical fiber line for receiving the communication optical signal transmitted by the optical transmission module 101.
Therefore, the technical effect that whether the primary optical fiber 30 fails or not can be judged by detecting the test optical signal and the primary optical fiber 30 is switched to the standby optical fiber 40 in time after the primary optical fiber 30 fails, so that the optical fiber circuit is protected is achieved through the product structure. And then solved the technical problem that the existing automatic switching protection equipment for optical fiber lines in the prior art can not find the fault of the optical fiber line by detecting optical signals, switch the optical fiber line and protect the optical fiber line.
Optionally, the optical fiber line automatic switching protection device 20 further includes: a third optical power detection module 213 and a fourth optical power detection module 214, wherein one end of the third optical power detection module 213 is connected to the first optical switch 231, and the other end is connected to the spare optical fiber 40; one end of the fourth optical power detection module 214 is connected to the second optical switch 232, and the other end is connected to the optical transceiver module 220; and the third optical power detection module 213 and the fourth optical power detection module 214 are both connected to the controller module 240.
Specifically, referring to fig. 1, the optical fiber line automatic switching protection device 20 further includes a third optical power detection module 213 and a fourth optical power detection module 214. The optical transceiver module 220 transmits the optical signal to the third optical power detection module 213 through the first optical switch 231, and the third optical power detection module 213 divides the optical signal into a communication optical signal and a test optical signal. The communication optical signal is transmitted to the spare optical fiber 40, and the test optical signal is converted by the third optical power detection module 213 and then transmitted to the controller module 240.
The spare optical fiber 40 transmits the optical signal to the fourth optical power detection module 214 through the second optical switch 232, and the fourth optical power detection module 214 divides the optical signal into a communication optical signal and a test optical signal. The communication optical signal is transmitted to the optical transceiver module 220, and the test optical signal is converted by the fourth optical power detection module 214 and then transmitted to the controller module 240.
The controller module 240 transmits the converted test optical signal to the optical transceiver module 220, and the optical transceiver module 220 detects the converted test optical signal and generates a detection result. The detection result is then transmitted to the controller module 240. The controller module 240 determines whether the spare optical fiber 40 is normal according to the detection result. Therefore, the technical effect of detecting whether the spare optical fiber 40 fails or not is achieved through the product structure.
Optionally, the method further comprises: and a wavelength conversion control module 50, wherein one end of the wavelength conversion control module 50 is connected to the spare optical fiber 40, and the other end is connected to the optical transceiver module 220, and is further connected to an ethernet network of a peripheral device.
Specifically, referring to fig. 1, when the primary optical fiber 30 is not in a failure, the wavelength conversion control module 50 receives the communication optical signal transmitted by the optical transceiver module 220, and then divides the communication optical signal according to the wavelength. The optical signal transmitted by the ethernet is also transmitted to the wavelength conversion control module 50, and the wavelength conversion control module 50 also divides the optical signal by wavelength. The communication optical signal transmitted by the optical transceiver module 220 and the optical signal transmitted by the ethernet within a certain wavelength range that can be used by the spare optical fiber 40 are coupled and then transmitted to the spare optical fiber 40.
The spare optical fiber 40 transmits the optical signal to the wavelength conversion control module 50, and the wavelength conversion control module 50 receives the optical signal and divides the optical signal according to the wavelength. Optical signals within a certain wavelength range suitable for ethernet are transmitted to the ethernet. An optical signal within a certain wavelength range suitable for the optical transceiver module 220 is transmitted to the optical transceiver module 220.
Therefore, the technical effect of fully utilizing the optical signal transmitted by the spare optical fiber 40 is achieved through the product structure.
Optionally, the ethernet module 60, wherein one end of the ethernet module 60 is connected to the wavelength conversion control module 50, and the other end is connected to the peripheral ethernet.
Specifically, referring to fig. 1, one end of the ethernet module 60 is connected to the wavelength conversion control module 50, and the other end is connected to the ethernet of the peripheral device. When the wavelength conversion control module 50 divides the optical signal transmitted by the spare optical fiber 40 according to the wavelength, the optical signal within a certain wavelength range that can be used by the ethernet module 60 is transmitted to the ethernet module 60. The ethernet module 60 debugs the optical signals within this wavelength range until they can be used by the ethernet.
The ethernet transmits the signal to the ethernet module 60, and the ethernet module 60 converts the signal into an optical signal corresponding thereto. The optical signal is transmitted by the ethernet module 60 to the wavelength conversion control module 50, and the wavelength conversion control module 50 transmits the optical signal to the spare optical fiber 40.
Thus, the technical effect of being able to debug the signals transmitted by the ethernet and the optical signals transmitted by the spare optical fiber 40 into valid signals for use by the spare optical fiber 40 or the ethernet is achieved by the product structure described above.
Optionally, the wavelength conversion control module 50 includes: a combiner 501 and a splitter 502, wherein
One end of the wave combiner 501 is connected with the third optical power detection module 213, and the other end is connected with the spare optical fiber 40; one end of the demultiplexer 502 is connected to the second optical switch 232, and the other end is connected to the spare optical fiber 40; and
the multiplexer 501 and the demultiplexer 502 are both connected to the ethernet module 60.
Specifically, referring to fig. 1, the wavelength conversion control module 50 includes a combiner 501 and a splitter 502. The main function of the combiner 501 is to combine optical signals with different wavelengths into one optical fiber by coupling, and the main function of the splitter 502 is to separate optical signals with different wavelengths. One end of the combiner 501 is connected with the third optical power detection module 213, and the other end is connected with the spare optical fiber 40; the demultiplexer 502 has one end connected to the second optical switch 232 and the other end connected to the spare optical fiber 40. The multiplexer 501 and the demultiplexer 502 are both connected to the ethernet module 60.
The ethernet transmits an external signal to the ethernet module 60. The ethernet module 60 converts the signal applied to the spare optical fiber 40 into an optical signal and transmits the optical signal to the combiner 501. The combiner 501 couples the received communication optical signal transmitted by the third optical power detection module 213 with the optical signal transmitted by the ethernet module 60, and transmits the coupled optical signal to the spare optical fiber 40.
When the spare optical fiber 40 transmits an optical signal to the demultiplexer 502, the demultiplexer 502 separates the optical signal according to the size of the wavelength. And transmits the differentiated optical signals to the ethernet module 60 and the fourth optical power detection module 214, respectively, for use by the ethernet connected to the ethernet module 60 and the optical transceiver module 220 connected to the fourth optical power detection module 214.
Thus, the technical effect of generating optical signals or signals for the spare optical fiber 40 or the ethernet is achieved by the product structure.
Optionally, the first optical power detection module 211 includes: a first optical splitter 2111, a first photoelectric converter 2112, a first voltage amplifier 2113 and a first analog-to-digital converter 2114, wherein the first optical splitter 2111 is connected to the first optical switch 231 and the primary optical fiber 30 respectively; the first photoelectric converter 2112 is connected to the first beam splitter 2111 and the first voltage amplifier 2113, respectively; the first voltage amplifier 2113 is connected to the first analog-to-digital converter 2114; and the first analog-to-digital converter 2114 is connected to the controller module 240.
Specifically, the first optical power detection module 211 mainly includes a first optical splitter 2111, a first photoelectric converter 2112, a first voltage amplifier 2113 and a first analog-to-digital converter 2114. One end of the first optical splitter 2111 is connected to the first optical switch 231, and the other end is connected to the primary optical fiber 30.
Referring to fig. 1 and 3, when the primary optical fiber 30 is not faulty, the optical signal emitted by the optical transmission module 101 is transmitted to the first optical splitter 2111 through the first optical switch 231, the first optical splitter 2111 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the primary optical fiber 30, and the test optical signal is transmitted to the first photoelectric converter 2112. The first photoelectric converter 2112 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the first voltage amplifier 2113. The first voltage amplifier 2113 amplifies the test electrical signal and transmits the test electrical signal to the first analog-to-digital converter 2114. The first analog-to-digital converter 2114 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Referring to fig. 2 and 3, when the primary optical fiber 30 fails, the spare optical fiber 40 is spliced into the optical fiber line instead of the primary optical fiber 30. The optical signal transmitted by the optical transceiver module 220 is transmitted to the first optical splitter 2111 through the first optical switch 231, the first optical splitter 2111 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the primary optical fiber 30, and the test optical signal is transmitted to the first photoelectric converter 2112. The first photoelectric converter 2112 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the first voltage amplifier 2113. The first voltage amplifier 2113 amplifies the test electrical signal and transmits the test electrical signal to the first analog-to-digital converter 2114. The first analog-to-digital converter 2114 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Therefore, the technical effect of enabling the optical transceiver module 220 to detect whether the primary optical fiber 30 is normal is achieved through the product structure.
Optionally, the second optical power detection module 212 includes: a second optical splitter 2121, a second photoelectric converter 2122, a second voltage amplifier 2123, and a second analog-to-digital converter 2124, wherein the second optical splitter 2121 is connected to the second optical switch 232 and the light receiving module 102, respectively; the second photoelectric converter 2122 is connected to the second beam splitter 2121 and the second voltage amplifier 2123; the second voltage amplifier 2123 is connected to the second analog-to-digital converter 2124; and a second analog-to-digital converter 2124 is coupled to controller module 240.
Specifically, the second optical power detection module 212 mainly includes a second optical splitter 2121, a second photoelectric converter 2122, a second voltage amplifier 2123, and a second analog-to-digital converter 2124.
One end of the second optical splitter 2121 is connected to the second optical switch 232, and the other end is connected to the light receiving module 102.
Referring to fig. 1 and 4, when the primary optical fiber 30 is not faulty, the optical signal emitted from the primary optical fiber 30 is transmitted to the second optical splitter 2121 through the second optical switch 232, the second optical splitter 2121 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the optical receiving module 102, and the test optical signal is transmitted to the second photoelectric converter 2122. The second photoelectric converter 2122 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the second voltage amplifier 2123. The second voltage amplifier 2123 amplifies the test electrical signal and transmits the test electrical signal to the second analog-to-digital converter 2124. The second analog-to-digital converter 2124 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Referring to fig. 2 and 4, when the primary optical fiber 30 fails, the spare optical fiber 40 is spliced into the optical fiber line instead of the primary optical fiber 30. The optical signal emitted from the spare optical fiber 40 is transmitted to the second optical splitter 2121 through the second optical switch 232, the second optical splitter 2121 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the optical receiver module 102, and the test optical signal is transmitted to the second photoelectric converter 2122. The second photoelectric converter 2122 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the second voltage amplifier 2123. The second voltage amplifier 2123 amplifies the test electrical signal and transmits the test electrical signal to the second analog-to-digital converter 2124. The second analog-to-digital converter 2124 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Therefore, the technical effect of enabling the optical transceiver module 220 to detect whether the primary optical fiber 30 or the spare optical fiber 40 is normal is achieved through the product structure.
Optionally, the third optical power detection module 213 comprises: a third optical splitter 2131, a third photoelectric converter 2132, a third voltage amplifier 2133 and a third analog-to-digital converter 2134, wherein the third optical splitter 2131 is connected to the first optical switch 231 and the spare optical fiber 40, respectively; the third photoelectric converter 2132 is connected to the third optical splitter 2131 and the third voltage amplifier 2133, respectively; the third voltage amplifier 2133 is connected to the third analog-to-digital converter 2134; and a third analog-to-digital converter 2134 is connected to the controller module 240.
Specifically, the third optical power detection module 213 mainly includes a third optical splitter 2131, a third photoelectric converter 2132, a third voltage amplifier 2123, and a third analog-to-digital converter 2134. One end of the third splitter 2131 is connected to the first optical switch 231, and the other end is connected to the spare optical fiber 40.
Referring to fig. 1 and 5, when the primary optical fiber 30 is not faulty, the optical signal emitted by the optical transceiver module 220 is transmitted to the third optical splitter 2131 through the first optical switch 231, the third optical splitter 2131 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the spare optical fiber 40, and the test optical signal is transmitted to the third optical-to-electrical converter 2132. The third photoelectric converter 2132 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the third voltage amplifier 2133. The third voltage amplifier 2133 amplifies the test electrical signal and transmits the test electrical signal to a third analog-to-digital converter 2134. The third analog-to-digital converter 2134 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Referring to fig. 2 and 5, when the primary optical fiber 30 fails, the spare optical fiber 40 is spliced into the optical fiber line instead of the primary optical fiber 30. The optical signal emitted by the optical transmission module 101 is transmitted to the third optical splitter 2131 through the first optical switch 231, the third optical splitter 2131 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the spare optical fiber 40, and the test optical signal is transmitted to the third photoelectric converter 2132. The third photoelectric converter 2132 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the third voltage amplifier 2133. The third voltage amplifier 2133 amplifies the test electrical signal and transmits the test electrical signal to a third analog-to-digital converter 2134. The third analog-to-digital converter 2134 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Therefore, the technical effect of enabling the optical transceiver module 220 to detect whether the spare optical fiber 40 is normal is achieved through the product structure.
Optionally, the fourth optical power detection module 214 includes: a fourth optical splitter 2141, a fourth photoelectric converter 2142, a fourth voltage amplifier 2143, and a fourth analog-to-digital converter 2144, wherein the fourth optical splitter 2141 is connected to the second optical switch 232 and the optical transceiver module 220, respectively; the fourth photoelectric converter 2142 is connected to the fourth optical splitter 2141 and the fourth voltage amplifier 2143, respectively; the fourth voltage amplifier 2143 is connected to the fourth adc 2144; and the fourth analog-to-digital converter 2144 is connected to the controller module 240.
Specifically, the fourth optical power detection module 214 mainly includes a fourth optical splitter 2141, a fourth photoelectric converter 2142, a fourth voltage amplifier 243, and a fourth analog-to-digital converter 2144. One end of the fourth optical splitter 2141 is connected to the second optical switch 232, and the other end is connected to the optical transceiver module 220.
Referring to fig. 1 and 6, when the primary optical fiber 30 is not failed, the optical signal emitted by the spare optical fiber 40 is transmitted to the fourth optical splitter 2141 through the second optical switch 232, and the fourth optical splitter 2141 splits the optical signal into a communication optical signal and a test optical signal. The communication optical signal is transmitted to the optical transceiver module 220, and the test optical signal is transmitted to the fourth photoelectric converter 2142. The fourth photoelectric converter 2142 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the fourth voltage amplifier 2143. The fourth voltage amplifier 2143 amplifies the test electrical signal and transmits the test electrical signal to the fourth analog-to-digital converter 2144. The fourth analog-to-digital converter 2144 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Referring to fig. 2 and 6, when the primary optical fiber 30 fails, the spare optical fiber 40 is spliced into the optical fiber line instead of the primary optical fiber 30. The optical signal transmitted by the primary optical fiber 30 is transmitted to the fourth optical splitter 2141 through the second optical switch 232, the fourth optical splitter 2141 splits the optical signal into a communication optical signal and a test optical signal, the communication optical signal is transmitted to the optical transceiver module 220, and the test optical signal is transmitted to the fourth optical-to-electrical converter 2142. The fourth photoelectric converter 2142 converts the test optical signal into a test electrical signal, and transmits the test electrical signal to the fourth voltage amplifier 2143. The fourth voltage amplifier 2143 amplifies the test electrical signal and transmits the test electrical signal to the fourth analog-to-digital converter 2144. The fourth analog-to-digital converter 2144 converts the test electrical signal into a test digital signal and transmits the test digital signal to the controller module 240 connected thereto.
Therefore, the technical effect of enabling the optical transceiver module 220 to detect whether the primary optical fiber 30 or the spare optical fiber 40 is normal is achieved through the product structure.
Optionally, the first optical power detection module 211 includes a first optical splitter 2111, the second optical power detection module 212 includes a second optical splitter 2121, the third optical power detection module 213 includes a third optical splitter 2131, and the fourth optical power detection module 214 includes a fourth optical splitter 2141, wherein the splitting ratio of the first optical splitter 2111, the second optical splitter 2121, the third optical splitter 2131, and the fourth optical splitter 2141 is 97: 3.
Specifically, referring to fig. 3, 4, 5, and 6, the splitting ratio of the first light splitter 2111, the second light splitter 2121, the third light splitter 2131, and the fourth light splitter 211 was 97: 3. That is, the optical signal is split into the communication optical signal and the test optical signal at a splitting ratio of 97: 3 by the first splitter 2111, the second splitter 2121, the third splitter 2131 and the fourth splitter 2141. Wherein a splitting ratio, if too small, causes polarization and, if too large, causes attenuation of the fiber optic line. Therefore, a beam splitter having a splitting ratio of 97: 3 is selected to be installed in the first optical power detection module 211, the second optical power detection module 212, the third optical power detection module 213, and the fourth optical power detection module 214. Therefore, the technical effects of ensuring normal transmission of optical signals and protecting optical fiber circuits are achieved through the product structure.
Therefore, the technical problem in the prior art is solved through the technical scheme of the embodiment, and the embodiment is suitable for the field of optical communication, in particular to an optical fiber line protection system, and has the following advantages:
1. the optical fiber line protection system provided by the invention can automatically switch the main optical fiber and the standby optical fiber by detecting optical signals;
2. the optical fiber line protection system provided by the invention adopts a 1: 1 protection mode, and when the primary optical fiber is not in fault, the standby line can transmit signals different from the primary optical fiber, so that the utilization rate of the optical cable is improved;
3. the optical fiber line protection system provided by the invention is provided with the wavelength conversion control module, so that the standby optical fiber works while the main optical fiber works normally, and the utilization rate of the standby optical fiber is increased;
4. the optical fiber line protection system provided by the invention has reduced limitation in function and application, thereby having commercial value.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are presented only for the convenience of describing and simplifying the disclosure, and in the absence of a contrary indication, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A fiber optic line protection system comprising: the optical fiber line protection system comprises an optical transceiver device (10), a primary optical fiber (30) and a backup optical fiber (40), wherein the optical transceiver device (10) is respectively connected with the primary optical fiber (30) and the backup optical fiber (40), and the optical transceiver device (10) comprises an optical transmission module (101) and an optical reception module (102), and is characterized in that the optical fiber line protection system further comprises an optical fiber line automatic switching protection device (20) respectively connected with the optical transceiver device (10), the primary optical fiber (30) and the backup optical fiber (40), wherein the optical fiber line automatic switching protection device (20) is connected with the optical transceiver device (10), the backup optical fiber (40), and the optical fiber line automatic switching protection device (30) and the backup optical fiber (40), and the optical fiber line automatic switching protection device
The optical fiber line automatic switching protection device (20) comprises: a first optical power detection module (211), a second optical power detection module (212), an optical transceiver module (220), a first optical switch (231), a second optical switch (232), and a controller module (240), and wherein
The controller module (240) is respectively connected with the first optical switch (231), the second optical switch (232), the first optical power detection module (211) and the second optical power detection module (212);
one end of the first optical power detection module (211) is connected with the first optical switch (231), and the other end is connected with the primary optical fiber (30);
one end of the second optical power detection module (212) is connected with the second optical switch (232), and the other end is connected with the optical receiving module (102);
the first optical switch (231) is connected with the optical transmitting module (101) and the optical transceiving module (220);
the second optical switch (232) is connected with the primary optical fiber (30) and the standby optical fiber (40);
the optical transceiver module (220) is respectively connected with the first optical switch (231) and the controller module (240);
the optical fiber line automatic switching protection device (20) further comprises: a third optical power detection module (213) and a fourth optical power detection module (214), wherein
One end of the third optical power detection module (213) is connected with the first optical switch (231), and the other end is connected with the spare optical fiber (40);
one end of the fourth optical power detection module (214) is connected to the second optical switch (232), and the other end is connected to the optical transceiver module (220); and
the third optical power detection module (213) and the fourth optical power detection module (214) are both connected with the controller module (240).
2. The fiber circuit protection system of claim 1, further comprising: a wavelength conversion control module (50), wherein
One end of the wavelength conversion control module (50) is connected with the spare optical fiber (40), and the other end is connected with the optical transceiver module (220) and also connected with an external Ethernet.
3. The fiber circuit protection system of claim 2, further comprising: an Ethernet module (60), wherein
One end of the Ethernet module (60) is connected with the wavelength conversion control module (50), and the other end is connected with the peripheral Ethernet.
4. The fiber circuit protection system according to claim 2, wherein the wavelength conversion control module (50) comprises: a combiner (501) and a splitter (502), wherein
One end of the wave combiner (501) is connected with the third optical power detection module (213), and the other end of the wave combiner is connected with the spare optical fiber (40);
one end of the wave separator (502) is connected with the spare optical fiber (40), and the other end of the wave separator is connected with the second optical switch (232); and
the wave combiner (501) and the wave separator (502) are both connected with an Ethernet module (60).
5. The fiber line protection system of claim 1, wherein the first optical power detection module (211) comprises: a first optical splitter (2111), a first photoelectric converter (2112), a first voltage amplifier (2113) and a first analog-to-digital converter (2114), wherein
The first optical splitter (2111) is connected to the first optical switch (231) and the primary optical fiber (30), respectively;
the first photoelectric converter (2112) is connected to the first optical splitter (2111) and the first voltage amplifier (2113), respectively;
the first voltage amplifier (2113) is connected with the first analog-to-digital converter (2114); and
the first analog-to-digital converter (2114) is connected to the controller module (240).
6. The fiber circuit protection system of claim 1, wherein the second optical power detection module (212) comprises: a second optical splitter (2121), a second photoelectric converter (2122), a second voltage amplifier (2123) and a second analog-to-digital converter (2124), wherein
The second optical splitter (2121) is respectively connected with the second optical switch (232) and the light receiving module (102);
the second photoelectric converter (2122) is connected to the second optical splitter (2121) and the second voltage amplifier (2123), respectively;
the second voltage amplifier (2123) is connected to the second analog-to-digital converter (2124); and
the second analog-to-digital converter (2124) is connected to the controller module (240).
7. The fiber line protection system of claim 1, wherein the third optical power detection module (213) comprises: a third optical splitter (2131), a third photoelectric converter (2132), a third voltage amplifier (2133) and a third analog-to-digital converter (2134), wherein
The third optical splitter (2131) is connected to the first optical switch (231) and the spare optical fiber (40), respectively;
the third photoelectric converter (2132) is connected to the third optical splitter (2131) and the third voltage amplifier (2133), respectively;
the third voltage amplifier (2133) is connected to the third analog-to-digital converter (2134); and
the third analog-to-digital converter (2134) is connected to the controller module (240).
8. The fiber line protection system of claim 1, wherein the fourth optical power detection module (214) comprises: a fourth optical splitter (2141), a fourth photoelectric converter (2142), a fourth voltage amplifier (2143), and a fourth analog-to-digital converter (2144), wherein
The fourth optical splitter (2141) is connected to the second optical switch (232) and the optical transceiver module (220), respectively;
the fourth photoelectric converter (2142) is connected to the fourth optical splitter (2141) and the fourth voltage amplifier (2143), respectively;
the fourth voltage amplifier (2143) is connected to the fourth analog-to-digital converter (2144); and
the fourth analog-to-digital converter (2144) is connected to the controller module (240).
9. The fiber line protection system of claim 1, wherein the first optical power detection module (211) comprises a first optical splitter (2111), the second optical power detection module (212) comprises a second optical splitter (2121), the third optical power detection module (213) comprises a third optical splitter (2131), and the fourth optical power detection module (214) comprises a fourth optical splitter (2141), wherein
The splitting ratio of the first splitter (2111), the second splitter (2121), the third splitter (2131) and the fourth splitter (2141) is 97: 3.
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| CN202210455297.5A CN114584206A (en) | 2022-04-28 | 2022-04-28 | Optical fiber line protection system |
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Application publication date: 20220603 |