CN113708883A - Local side to far side network frame capable of monitoring optical fiber state - Google Patents
Local side to far side network frame capable of monitoring optical fiber state Download PDFInfo
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 125
- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims abstract description 238
- 238000001514 detection method Methods 0.000 claims abstract description 106
- 239000000835 fiber Substances 0.000 claims abstract description 21
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- 238000003780 insertion Methods 0.000 description 29
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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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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
Abstract
The invention discloses a local side-to-remote network framework capable of monitoring the state of an optical fiber, which comprises an ODF (optical fiber dummy resource), an ODF (remote building ODF) and a resource management server, wherein the ODF is comprehensively accessed by a local side; the office end integrated access ODF is internally provided with a first ODF flange plate, active equipment and a second ODF flange plate which are sequentially connected in sequence, and the building ODF comprises a third flange plate, a fourth flange plate and passive equipment which are sequentially connected in sequence; the second ODF flange plate is connected with the third flange plate through the optical fiber dummy resource; the local side client side sends a data service optical signal and carries out 1: the 99 optical splitting process is divided into two paths of data service optical signals, wherein one path of 1% data service optical signal enters a second optical detector of the active device to perform optical power P2 detection to judge the service online state. The invention adopts the independent monitoring design of each core, each path of light source is independent, and the light source can be used without configuration, thereby obtaining the availability of each path of fiber core and the on-line monitoring of the service.
Description
Technical Field
The invention relates to the field of communication networks, in particular to a network frame from a local side to a remote side, which can monitor the state of an optical fiber.
Background
In the operator's network, there are a lot of passive networks, which cannot report their own information automatically, and are called "dummy resources". At present, most light is handed over in-box dumb resource and is not effectual supervision, and the distribution condition and the behavior of resource can't be mastered in real time.
The current resource supervision adopts a manpower inspection mode to ensure the normal operation of the box body, and the mode has high operation cost and poor actual effect.
Most of the current research progress from the intelligent technology angle is a scheme for monitoring the position information, the temperature and the humidity, the vibration displacement and the like of the optical communication box through the internet of things technologies such as an intelligent electronic lock, an intelligent gateway and the like, and the scheme focuses on the aspects of preventing damage, unlocking authority, environment information and the like, and does not provide a scheme for monitoring and managing the link state in the dumb resources.
Therefore, there is a need to improve the prior art to provide an efficient and cost-effective network framework that can monitor link status in dumb resources from the office to the remote end on-line.
Disclosure of Invention
In order to solve the technical problem, a network framework which improves efficiency, saves cost and can monitor the link state from the local side to the remote side in the dummy resources on line is provided.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a can monitor the local side of the optical fiber state to the network frame of the far-end, including the integrated access ODF of the local side, the dummy resource of optic fibre, ODF of the far-end building and resource management server; the local side integrated access ODF is respectively connected with a remote building ODF through optical fiber dummy resources on one hand and is connected with a resource management server through a DCN (distributed control network) on the other hand;
the office end integrated access ODF is internally provided with a first ODF flange plate, active equipment and a second ODF flange plate which are sequentially connected in sequence, and the building ODF comprises a third flange plate, passive equipment and a fourth flange plate which are sequentially connected in sequence; the second ODF flange plate is connected with the third flange plate through the optical fiber dummy resource; the optical signal of the data service sent by the local side client is connected to the active device through the first flange plate, and the optical signal of the local side service is processed by the following steps that 1: the 99 optical splitting process is divided into two paths of data service optical signals, wherein one path of 1% of the data service optical signals enters a second optical detector of the active device to carry out optical power P2 detection, when the optical power P2 is greater than 0, the service is on-line, otherwise, the service is off-line;
simultaneously, the ODF is comprehensively accessed at the local side to generate a detection optical signal with a wavelength different from that of the local side service optical signal, and the detection optical signal is compounded to the optical fiber dummy resource through a second path of 99% of the local side service optical signal of the wavelength division multiplexer of the active equipment; the third flange disk which is transmitted to the building ODF through the optical fiber dummy resource is connected to the passive device, and after the passive device receives the optical fiber dummy resource, the optical fiber dummy resource is judged whether to be idle or not by separating out detection optical signals through a wavelength division demultiplexer of the passive device and reflecting the detection optical signals to the local side integrated access ODF;
and the local side integrated access ODF transmits the detected detection optical signal information to the resource management server for analysis through the DCN through the first flange plate.
Preferably, the active device includes a control module and an optical detection module, the optical detection module includes a monitoring light source, an optical switch and N unit detection optical paths, and any unit detection optical path includes a wavelength division multiplexer, an optical splitter, a circulator, a first photodetector, a second photodetector, a third photodetector, and a fourth photodetector;
passive devices are arranged in any far-end building ODF, the passive devices comprise N paths of unit reflection light paths, and any path of unit reflection light path comprises a wavelength division demultiplexer and a reflector;
the monitoring light source emits detection light signals, and the detection light signals are output to the optical switch to be divided into N paths of light signals which are respectively input to N paths of unit detection light paths;
after data service optical signals sent by a client sending end are subjected to wave splitting by a wave splitter, 1% of the data service optical signals enter a second optical detector connected with the wave splitter for detection, and the remaining 99% of the data service optical signals are input into a path of unit detection optical path connected with the data service optical signals and combined with a path of optical signals output by an optical switch in the unit detection optical path, then output to optical fiber dummy resources to be detected through a circulator and a second ODF flange plate and transmitted to a remote building ODF connected with the optical fiber dummy resources to be detected through the optical fiber dummy resources to be detected;
the remote building ODF receives the compounded optical signal through the third flange plate and transmits the optical signal to an optical fiber reflection module of the passive device, any path of unit reflection optical path of the optical fiber reflection module receives the optical signal transmitted by the optical fiber dummy resource and then separates out a detection optical signal and a data service optical signal through a wavelength division demultiplexer, the detection optical signal and the data service optical signal are transmitted to a reflector, the detection optical signal is reflected back to the wavelength division demultiplexer through the reflector and is transmitted to the optical fiber dummy resource to be detected through the wavelength division demultiplexer, and the data service optical signal is output to a remote building user client through the reflector;
the optical detection module receives detection optical signals reflected by the optical fiber dummy resource to be detected, outputs the detection optical signals to the fourth photoelectric detector through the circulator for detection, and outputs detected data signals to the control module;
after the control module acquires the detection data, the control module judges the running condition of each optical fiber circuit through calculation processing and reports the information to the resource network management server.
Specifically, the optical fiber dummy resource to be tested is a 12-core or 24-core optical fiber. The resource network management server is connected with a mobile phone APP for displaying data. The optical switch is an 8-path or 16-path output port optical switch. And the first flange plate to the fourth flange plate adopt APC interface optical fiber interfaces.
Preferably, the first photodetector is optically connected to the optical switch, and is configured to collect a detection optical signal power value P1 output from the optical switch;
the second photodetector is connected to the optical splitter and is configured to detect an optical power value P2 of the data service optical signal at the user end;
the third photoelectric detector is connected with the circulator and is used for detecting the optical power value P3 of the optical signal after passing through the circulator;
the fourth photodetector is connected to the output port, and is configured to detect an optical power value P4 of the detection optical signal reflected by the reflection module.
Preferably, the rule for judging the operation condition of each optical fiber line is as follows:
the judgment basis is as follows: and when the P3 is larger than the P1, judging that the optical signal is normal, otherwise, judging that the optical detection module has a fault, and reporting the fault information to a network management center.
Preferably, the method for calculating the insertion loss value of the dummy fiber resource to be tested is as follows:
and the insertion loss value delta of the optical fiber dummy resource to be tested is P1-combined wave WDM insertion loss-divided wave WDM insertion loss-P4.
The invention has the beneficial technical effects that:
the device of the invention is accessed into ODF device and far-end building ODF device synthetically, on the design, the all-optical design is adopted, on the link, the passive optical design is adopted, and the device is composed of three-port junction wave separator, light separator, circulator and reflector, so the on-off of the link is independent of the power supply, the device is cut off, and no influence is caused to the service;
the ODF of the remote building adopts a passive design, does not need to take electricity, is convenient to deploy and maintain, and saves energy;
the invention adopts the independent monitoring design of each core, each path of light source is independent, and the light source can be used without configuration, thereby obtaining the availability of each path of fiber core and the on-line monitoring of the service.
Drawings
FIG. 1 is a block diagram of the overall structure of the present invention;
FIG. 2 is a functional block diagram of the active device of the present invention;
fig. 3 is a functional block diagram of a passive device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, a office-to-remote network framework capable of monitoring the status of Optical fibers includes an office integrated access ODF, an Optical fiber dummy resource, a remote building ODF (Optical Distribution Frame) for terminating and distributing a trunk Optical cable at an office in an Optical fiber communication system, which can conveniently implement connection, Distribution and scheduling of Optical fiber lines, and a resource management server; the local side integrated access ODF is respectively connected with a remote building ODF through an optical fiber dummy resource (the information of the local side integrated access ODF cannot be reported) on one hand, and is connected with a resource management server through a DCN (data communication network) network on the other hand;
the office end integrated access ODF comprises a first ODF flange plate, active equipment and a second ODF flange plate which are sequentially connected, and the building ODF comprises a third flange plate, passive equipment and a fourth flange plate which are sequentially connected; the second ODF flange plate is connected with the third flange plate through the optical fiber dummy resource;
the optical signal of the data service sent by the local side client is connected to the active device through the first flange plate, and the optical signal of the local side service is processed by the following steps that 1: the 99 optical splitting process is divided into two paths of data service optical signals, wherein one path of 1% of the data service optical signals enters a second optical detector of the active device to carry out optical power P2 detection, when the optical power P2 is greater than 0, the service is on-line, otherwise, the service is off-line;
simultaneously, the ODF is comprehensively accessed at the local side to generate a detection optical signal with a wavelength different from that of the local side service optical signal, and the detection optical signal is compounded to the optical fiber dummy resource through a second path of 99% of the local side service optical signal of the wavelength division multiplexer of the active equipment; the third flange disk which is transmitted to the building ODF through the optical fiber dummy resource is connected to the passive device, and after the passive device receives the optical fiber dummy resource, the optical fiber dummy resource is judged whether to be idle or not by separating out detection optical signals through a wavelength division demultiplexer of the passive device and reflecting the detection optical signals to the local side integrated access ODF;
and the local side integrated access ODF transmits the detected detection optical signal information to the resource management server for analysis through the DCN through the first flange plate.
Preferably, the active device includes a control module and an optical detection module, the optical detection module includes a monitoring light source, an optical switch and N unit detection optical paths, and any unit detection optical path includes a wavelength division multiplexer, an optical splitter, a circulator, a first photodetector, a second photodetector, a third photodetector, and a fourth photodetector;
passive devices are arranged in any far-end building ODF, the passive devices comprise N paths of unit reflection light paths, and any path of unit reflection light path comprises a wavelength division demultiplexer and a reflector;
the monitoring light source emits detection light signals, and the detection light signals are output to the optical switch to be divided into N paths of light signals which are respectively input to N paths of unit detection light paths;
after data service optical signals sent by a client sending end are subjected to wave splitting by a wave splitter, 1% of the data service optical signals enter a second optical detector connected with the wave splitter for detection, and the remaining 99% of the data service optical signals are input into a path of unit detection optical path connected with the data service optical signals and combined with a path of optical signals output by an optical switch in the unit detection optical path, then output to optical fiber dummy resources to be detected through a circulator and a second ODF flange plate and transmitted to a remote building ODF connected with the optical fiber dummy resources to be detected through the optical fiber dummy resources to be detected;
the remote building ODF receives the compounded optical signal through the third flange plate and transmits the optical signal to an optical fiber reflection module of the passive device, any path of unit reflection optical path of the optical fiber reflection module receives the optical signal transmitted by the optical fiber dummy resource to be detected and then separates out a detection optical signal and a data service optical signal through a wavelength division demultiplexer, the detection optical signal and the data service optical signal are transmitted to a reflector, the detection optical signal is reflected back to the wavelength division demultiplexer through the reflector and transmitted to the optical fiber dummy resource to be detected through the wavelength division demultiplexer, and the data service optical signal is output to a remote building user client through the reflector;
the optical detection module receives detection optical signals reflected by the optical fiber dummy resource to be detected, outputs the detection optical signals to the fourth photoelectric detector through the circulator for detection, and outputs detected data signals to the control module;
after the control module acquires the detection data, the control module judges the running condition of each optical fiber circuit through calculation processing and reports the information to the resource network management server.
Specifically, the dummy resource optical fiber is a 12-core or 24-core optical fiber. The resource network management server is connected with a mobile phone APP for displaying data. The optical switch is an 8-path or 16-path output port optical switch. And the first flange plate to the fourth flange plate adopt APC interface optical fiber interfaces.
The first photodetector PD1 is optically connected to the optical switch, and is configured to collect a detection optical signal power value P1 output from the optical switch;
the second photodetector PD2 is connected to the optical splitter, and is configured to detect an optical power value P2 of the data service optical signal at the user end;
the third photodetector PD3 is connected with the circulator and is used for detecting the optical power value P3 of the optical signal after passing through the circulator;
the fourth photodetector PD4 is connected to the fourth flange plate, and is configured to detect an optical power value P4 of the detection optical signal reflected by the reflection module.
Preferably, the rule for judging the operation condition of each optical fiber line is as follows:
the judgment basis is as follows: and when the P3 is larger than the P1, judging that the optical signal is normal, otherwise, judging that the optical detection module has a fault, and reporting the fault information to a network management center.
Preferably, the method for calculating the insertion loss value of the dummy fiber resource to be tested is as follows:
and the insertion loss value delta of the optical fiber dummy resource to be tested is P1-insertion loss of the wavelength division multiplexer-insertion loss of the wavelength division demultiplexer-P4.
The principle that the active equipment and the passive equipment detect the dummy resource optical fiber is shown in fig. 2 and 3, the active equipment can simultaneously monitor a plurality of paths of different optical fiber dummy resources to be detected, the invention only explains the principle of the optical fiber dummy resources to be detected (a first optical fiber circuit is shown in the drawing, and the optical fiber dummy resources to be detected are all shown as the optical fiber circuit to be detected), the monitoring principle of other optical fiber circuits is the same as that of the first optical fiber circuit, and the used components and circuit principles are the same.
The monitoring light source of the active equipment generates a light source for testing an optical fiber circuit, the wavelength of a detection light signal generated by the light source is different from the wavelength of a data service light signal generated on an optical fiber circuit of a user end A, so that the service data signal of the user end can be ensured not to be influenced, meanwhile, the dispersion coefficient of the detection light signal is lower, the loss of the optical power in the transmission process on the optical fiber to be tested is reduced, more accurate optical power information is obtained, and more accurate judgment is made; in addition, different wavelength signals can be conveniently processed by wave combination and wave division, so that the system has higher feasibility and lower input cost. Specifically, the optical signal wavelength is selected to be 1591nm, and the data traffic optical signal is selected to be 1310nm or 1550 nm.
Specifically, the detection optical signal is output to the optical switch, the optical switch can provide multiple schemes such as 2-way, 4-way, 8-way, 16-way and the like according to the application requirements of an actual scene, so that optical fiber monitoring resources are utilized to the maximum extent, the optical switch of 8-way or 16-way can be used at the concentrated station of the optical fiber line, the monitoring of one-way detection optical signal on multiple optical fiber lines can be realized, the investment of a detection system is saved, the optical switch of 2-way or 4-way can be used at the scattered station of the optical fiber line, the waste of a detection port is avoided, and the material cost investment can be reduced. The optical detection optical signal has influence on the power of the optical signal after passing through the optical switch, the optical switches with different paths have different influence on the power of the optical signal, and at this time, the first photodetector PD1 is needed to accurately collect the power value of the optical detection optical signal output from the optical switch, and the current optical power value of the optical signal is recorded as P1.
The optical detection module provides a multi-path service line interface, and can access user data information of a client A in a local OFD, the user data information enters the detection module, is divided into two optical paths of 1:99 by a wave splitter, and is used for detecting the power of 1% of detected optical signals of the data information by a second photoelectric detector PD2 and recording the optical power value of the current optical signals as P2.
The optical detection signal and the other 99% of service data signal light are multiplexed by a WDM (wavelength division multiplexing) device, the WDM device multiplexes the two groups of signals and outputs the signals to a circulator, the circulator transmits the optical signals output by the WDM device in a lossless manner, before the optical signals output by the circulator enter an optical fiber to be detected, a third photoelectric detector PD3 is needed to detect the optical power of the optical signals, and the current optical power value is recorded as P3. The optical signal output by the circulator is output to the port of the detection module and enters the optical fiber line to be detected, the port uses the optical fiber flange interface in the APC mode, the return loss generated when the port is not connected with the optical fiber of the line to be detected can be effectively eliminated, and misjudgment and errors are avoided.
The circulator can transmit optical signals output to an optical fiber line to be detected by the wavelength division multiplexer in a lossless manner, but can effectively strip optical signals output to the optical fiber line to be detected in the WDM direction at the position of the wavelength division multiplexer, after receiving the optical signals reflected by the optical fiber line to be detected from the opposite end, the circulator can effectively strip out the reflected detection optical signals, a fourth photoelectric detector PD4 is needed, optical power detection is carried out on the reflected detection optical signals, and the current optical power value is recorded as P4.
The optical fiber line to be tested transmits the optical detection signal to the optical fiber reflection module of the passive device.
As shown in fig. 3, after receiving the optical detection signal input by the optical fiber line to be detected, the optical fiber reflection module splits the wave through the WDM wavelength division demultiplexer, and the split optical detection signal passes through the reflector, and then is reflected back to the optical fiber line to be detected, and is transmitted back to the optical fiber monitoring module end; the service data information after the wave division is directly output to a line interface of a client B connected with a remote building ODF.
After the control module collects the optical powers P1, P2, P4 and P3, the calculation is performed by the following algorithm.
And the insertion loss value delta of the optical fiber line to be tested is P1-insertion loss of the wavelength division multiplexer-insertion loss of the wavelength division demultiplexer-P4.
In this example, the add/drop loss of the wavelength division multiplexer and the add/drop loss of the wavelength division demultiplexer are 1dB, the data can be well controlled when a system is designed, and whether the add/drop loss value meets the application requirement of the system can be judged according to the factors of an actual device.
According to the principle, the insertion loss of the optical fiber line to be measured is a value of the optical fiber line to be measured going back and forth once, and if the actual insertion loss of the optical fiber line to be measured is calculated, the actual insertion loss of the optical fiber line to be measured is delta/2.
And the distance L of the optical fiber line to be measured is equal to the insertion loss of the actual optical fiber line to be measured divided by the optical fiber loss.
The fiber loss is as follows, according to ITU-T standard, the dispersion loss of the standard G.652 single-mode fiber is generally about 0.35dB/km in 1310nm band and about 0.250.35dB/km in 1550nm band, and the data is relatively accurate within 50km according to the standard requirement.
As described above, the control module can determine whether the optical fiber line is usable according to the actual insertion loss of the optical fiber line to be tested and the distance of the optical fiber line to be tested, and the specific principle is as follows:
the optical fiber line insertion loss generally consists of insertion loss introduced by optical fiber self-transmission and insertion loss generated by an optical fiber transit point, and corresponding line insertion loss redundancy reserved in a line is considered in consideration of the complexity and the unknown of an actual line optical fiber line.
The insertion loss of each optical fiber switching point is generally 0.5dB, one line is calculated according to 4 switching points on average, and the insertion loss caused by the optical fiber switching points is 2 dB.
In practical optical fiber communication engineering applications, operators generally consider the insertion loss redundancy of an optical fiber line to be 2 dB.
Taking the distance of the optical fiber (1310nm signal) between stations as 10km as an example, the insertion loss of the optical fiber line is calculated as follows:
the insertion loss of the optical fiber line to be tested is 0.35 × 10+2+2, 7.5 (dB).
In practical engineering application, within a corresponding optical fiber distance, if a line insertion loss test is within an insertion loss range calculated as follows, the optical fiber line is considered to meet the requirements of engineering application.
Typical line distance insertion requirements are shown in table 1 below:
table 1:
therefore, if the calculated line insertion loss and the calculated line distance are within the range of the table 1, the optical fiber to be tested is considered to be available, the information can be visually presented in a network control center, and the purpose that the optical fiber line can be managed in a machine room is achieved.
The optical power P2 can be used to determine whether there is a service in the subscriber line at the client a, according to the determination that the optical power at the location should be less than-15 dB when there is no data service, and the optical power at the location should be greater than-2 dB when there is data service, and report the information to the network management center.
And for the optical power P3, the optical power P3 is used for balancing whether the optical signal after WDM wave combination is normal or not, ensuring that the optical signal transmitted to the optical fiber line to be detected is available, judging that the optical signal is normal according to the condition that P3 is greater than P1, otherwise, judging that the optical detection module has a fault, and reporting the judgment information to a network management center.
The combination and principle of each component of the above-mentioned example are explained and explained only for the first dummy resource of the optical fiber to be tested, and the principle and implementation manner of the other dummy resources of the optical fiber to be tested are the same as those of the first dummy resource of the optical fiber to be tested. For the sake of brevity, the technical features of the combination of the respective devices in the above examples are not described, however, as long as there is no contradiction between the combinations of the technical features, they are considered to be the scope set forth in the specification.
The device of the invention is accessed into ODF device and far-end building ODF device synthetically, the design adopts the all-optical design idea, on the link, all adopt the passive optics to set up, it is made up of three-port combining wave separator, beam splitter, circulator, reflector, make its on-off of link have nothing to do with the power, whether the device is cut off the power supply, have no influence on the business;
the ODF of the remote building adopts a passive design, does not need to take electricity, is convenient to deploy and maintain, and saves energy;
the invention adopts the independent monitoring design of each core, each path of light source is independent, and the light source can be used without configuration, thereby obtaining the availability of each path of fiber core and the on-line monitoring of the service.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. A can monitor the local side of the optical fiber state to the far-end network frame, wherein include the integrated access ODF of the local side, the dumb resource of optic fibre, ODF of the far-end building and resource management server; the local side integrated access ODF is respectively connected with a remote building ODF through optical fiber dummy resources on one hand and is connected with a resource management server through a DCN (distributed control network) on the other hand;
the office end integrated access ODF comprises a first ODF flange plate, active equipment and a second ODF flange plate which are sequentially connected, and the building ODF comprises a third flange plate, passive equipment and a fourth flange plate which are sequentially connected; the second ODF flange plate is connected with the third flange plate through the optical fiber dummy resource;
the local side client side sends a data service optical signal, the data service optical signal is connected into the active device through the first flange plate, and the local side service optical signal is processed by the optical splitter in the active device by the following steps that 1: the 99 optical splitting process is divided into two paths of data service optical signals, wherein one path of 1% of the data service optical signals enters a second optical detector of the active device to perform optical power detection to obtain optical power P2, when the optical power P2 is greater than 0, the service is online, otherwise, the service is offline;
the office end is comprehensively accessed into the ODF to generate an optical detection signal, and the optical detection signal is compounded with 99% of office end service optical signals of the second path of the service optical signals to optical fiber dummy resources through a wavelength division multiplexer of active equipment; transmitting the optical fiber dummy resource to a third flange disc of the building ODF through the optical fiber dummy resource and connecting the optical fiber dummy resource to the passive device, after receiving the optical fiber dummy resource, dividing a detection optical signal by a wavelength division demultiplexer of the passive device and reflecting the detection optical signal to a local side comprehensive access ODF to judge whether the optical fiber dummy resource is idle;
and the local side integrated access ODF transmits the detected detection optical signal information to the resource management server for analysis through the DCN through the first flange plate.
2. The office-to-remote network framework of claim 1, wherein said active device comprises a control module and a light detection module, said light detection module comprises a monitoring light source, an optical switch and N unit detection optical paths, any unit detection optical path comprises a wavelength division multiplexer, an optical splitter, a circulator and a first photodetector, a second photodetector, a third photodetector, and a fourth photodetector;
passive devices are arranged in any far-end building ODF, the passive devices comprise N paths of unit reflection light paths, and any path of unit reflection light path comprises a wavelength division demultiplexer and a reflector;
the monitoring light source emits the detection light signal, and the detection light signal is output to the optical switch to be divided into N paths of light signals which are respectively input to N paths of unit detection light paths;
after data service optical signals sent by a local side client enter a wave divider for wave division, 1% of the data service optical signals enter a second optical detector connected with the wave divider for detection, and the remaining 99% of the data service optical signals are input into a unit detection optical path connected with the unit detection optical path, combined with one path of detection optical signals output by an optical switch in the unit detection optical path, output to optical fiber dummy resources to be detected through a circulator and a second ODF flange plate and transmitted to a remote building ODF connected with the unit detection optical path through the optical fiber dummy resources to be detected;
the remote building ODF receives the compounded optical signal through the third flange plate and transmits the optical signal to an optical fiber reflection module of the passive device, any path of unit reflection light path of the optical fiber reflection module receives a detection optical signal transmitted by an optical fiber dummy resource to be detected and then separates the detection optical signal and a data service optical signal through a wavelength division demultiplexer, the detection optical signal and the data service optical signal are transmitted to a reflector, the detection optical signal is reflected back to the wavelength division demultiplexer through the reflector and is transmitted to the optical fiber dummy resource to be detected through the wavelength division demultiplexer, and the data service optical signal is output to a remote building ODF user client through the reflector;
the optical detection module receives detection optical signals reflected by the optical fiber dummy resource to be detected, outputs the detection optical signals to the fourth photoelectric detector through the circulator for detection, and outputs detected data signals to the control module;
and after the control module acquires the detection data, the control module judges the running condition of each fiber dummy resource and reports the information to the resource network management server.
3. The office-to-remote network framework capable of monitoring fiber status of claim 1 wherein said fiber dummy resource is a 12-core or 24-core fiber.
4. The office-to-remote network framework capable of monitoring fiber states as claimed in claim 1, wherein said resource network management server is connected with a mobile phone APP.
5. The office-to-remote network framework for monitoring fiber status according to claim 1, wherein said detection optical signal and said data traffic optical signal are optical signals of different wavelengths.
6. The office-to-remote network framework capable of monitoring fiber status of claim 1, wherein said optical switch is an 8-way or 16-way output port optical switch.
7. The office-to-remote network framework for monitoring fiber status of claim 1, wherein the first flange to the fourth flange office employ APC-interface fiber interfaces.
8. The office-to-remote network framework capable of monitoring fiber optic status of claim 7,
the first photoelectric detector is optically connected with the optical switch and is used for collecting a path of detection optical signal power value P1 output from the optical switch;
the third photoelectric detector is connected with the circulator and is used for detecting the optical power value P3 of the optical signal after passing through the circulator;
the fourth photodetector is connected to the fourth flange plate, and is configured to detect an optical power value P4 of the detection optical signal reflected by the reflection module.
9. The office-to-remote network framework for monitoring fiber optic status of claim 1, wherein the rules for determining the operational status of each fiber optic line are as follows:
the judgment basis is as follows: and when the P3 is larger than the P1, judging that the optical signal is normal, otherwise, judging that the optical detection module has a fault, and reporting the fault information to a network management center.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115473575A (en) * | 2022-11-02 | 2022-12-13 | 高勘(广州)技术有限公司 | Optical cable pipeline monitoring method, device, equipment and storage medium based on dummy resources |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265533A (en) * | 2008-12-31 | 2011-11-30 | 泰科电子瑞侃有限公司 | Unidirectional absolute optical attenuation measurement with otdr |
| CN102739310A (en) * | 2012-06-15 | 2012-10-17 | 华为技术有限公司 | Method, device and system for controlling intelligent optical distribution network (iODN) equipment |
| US20190028190A1 (en) * | 2017-01-25 | 2019-01-24 | T&S Communications Co., Ltd. | Passive Wavelength Division Mobile Fronthaul Network System |
| CN112187344A (en) * | 2019-07-02 | 2021-01-05 | 北京见合八方科技发展有限公司 | Wavelength division passive optical access network system and equipment |
-
2021
- 2021-08-17 CN CN202110945266.3A patent/CN113708883B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265533A (en) * | 2008-12-31 | 2011-11-30 | 泰科电子瑞侃有限公司 | Unidirectional absolute optical attenuation measurement with otdr |
| CN102739310A (en) * | 2012-06-15 | 2012-10-17 | 华为技术有限公司 | Method, device and system for controlling intelligent optical distribution network (iODN) equipment |
| US20190028190A1 (en) * | 2017-01-25 | 2019-01-24 | T&S Communications Co., Ltd. | Passive Wavelength Division Mobile Fronthaul Network System |
| CN112187344A (en) * | 2019-07-02 | 2021-01-05 | 北京见合八方科技发展有限公司 | Wavelength division passive optical access network system and equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115473575A (en) * | 2022-11-02 | 2022-12-13 | 高勘(广州)技术有限公司 | Optical cable pipeline monitoring method, device, equipment and storage medium based on dummy resources |
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