CN103647601A - Fiber monitoring system - Google Patents
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- CN103647601A CN103647601A CN201310686437.0A CN201310686437A CN103647601A CN 103647601 A CN103647601 A CN 103647601A CN 201310686437 A CN201310686437 A CN 201310686437A CN 103647601 A CN103647601 A CN 103647601A
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Abstract
The invention discloses a fiber monitoring system. The fiber monitoring system comprises multiple monitoring hosts and a first monitoring server connected with the monitoring hosts, wherein the monitoring hosts comprise monitoring modules, the monitoring modules comprise optical transceivers used for receiving optical signals after transmission through a fiber to be detected, optical signal ports and micro processors, the optical transceivers are connected with the optical signal ports, the optical signal ports are connected with the micro processors through a data/control bus, the micro processors are used for processing the optical signals which are transmitted through the optical signal ports to the micro processors and are used for sending processing results to the first monitoring server, the first monitoring server comprises an alarm module, the alarm module is used for carrying out alarm after receiving the processing results of the micro processors. The fiber monitoring system can reduce and prevent optical cable faults and can position positions of the optical cable faults.
Description
Technical field
The application relates to optical fiber technology field, particularly a kind of optic-fiber monitoring system.
Background technology
Along with the development of modern electric communications industry, optical cable is widely used in communications.And fiber-optic monitoring technology is also along with the development of Fibre Optical Communication Technology develops rapidly.Fiber-optic monitoring technology is compared with traditional monitoring technology, due to take light signal as carrier, optical fiber be medium, and optical fiber itself is gently carefully soft and slender, core material is silicon dioxide, make the control point of fiber-optic monitoring be convenient to lay installation, on burying the material property at position underground and mechanics parameter impact is less, fiber-optic monitoring equipment has corrosion-resistant, anti-electromagnetic interference, a series of advantages such as anti-lightning strike.But existing optic-fiber monitoring system is not supported the monitoring to optic fibre characteristic conventionally.When optical cable breaks down, cannot determine obstacle location and repair fast.Development along with fiber cable network, network complexity increases, requirement has higher levels of monitoring and management system, can in time, accurately monitor the contingent blocking position of each optical cable segment of whole network, so that establishment officer's repairing effectively in time,, reduce significantly and compress fault and last, becoming passive type and safeguard to be active maintenance.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of optic-fiber monitoring system, with variation and the variation tendency of Real-Time Monitoring optic fibre characteristic, accurately determines Cable's Fault position.
The optic-fiber monitoring system that the application provides comprises: a plurality of monitoring main frames, and the first monitor server, described monitoring main frame is connected to the first monitor server, and described monitoring main frame comprises monitoring modular, wherein:
Described monitoring modular comprises: for receiving the optical transmitter and receiver of the light signal after testing fiber transmission, and light signal port and microprocessor, described optical transmitter and receiver connects light signal port, described light signal port is connected with microprocessor by data/control bus, described microprocessor is used for processing give the light signal of microprocessor through optical-signal end oral instructions, and result is sent to the first monitor server;
Described the first monitor server comprises alarm module, for reporting to the police according to result after receiving the result of microprocessor.
Preferably, at described testing fiber, be when using optical fiber, described monitoring modular is specially light power monitoring measuring unit, described light signal port is luminous power port, described light power monitoring measuring unit comprises optical splitter, for the light signal that optical transmitter and receiver is received, according to predetermined splitting ratio, carry out light splitting, a branched optical signal after light splitting is given described microprocessor by luminous power port transmission, described microprocessor comprises the first comparator, for the power of described light signal and pre-set threshold value are compared, result is relatively sent to the first monitor server;
When described testing fiber is standby optical fiber or empty fibre, described monitoring modular is specially optical time domain reflection unit, described light signal port is switching element, described optical time domain reflection unit comprises pulse laser, for injecting light pulse to described testing fiber, described light pulse sends described microprocessor to by the switching element of opening, described microprocessor comprises the second comparator, for test optical fiber curve and the predetermined curve that light pulse is formed after testing fiber, compare, result is relatively sent to the first monitor server.
Preferably, described alarm module comprises judgement selection circuit, and the first sound and light alarm device, the second sound and light alarm device, the 3rd sound and light alarm device and falling tone light alarm device,
When knowing according to described result the accident comprising more than 5dB, judgement selects circuit triggers the first sound and light alarm device to be shown as the first predetermined color, and sends the first predetermined sound cue;
When knowing that according to described result optical-fibre channel full range transmission loss value is than primary data more than large 5dB, or, when the failure values of optical fiber splice increases to 2dB, judgement selects circuit triggers the second sound and light alarm device to be shown as the second predetermined color, and sends the second predetermined sound cue;
When knowing that according to described result the increment of optical fiber full range transmission loss value is 1 to 5dB, or when in lightguide cable link mid-game optical cable, the increment of each monitored optical fiber attenuation coefficient is greater than 0.1dB/km, or, when the increment of opticalfiber splicing loss value is 0.5dB, judgement selects circuit triggers the 3rd sound and light alarm device to be shown as the 3rd predetermined color, and sends the 3rd predetermined sound cue;
When knowing that according to described result communication network breaks down, judgement selects circuit triggers falling tone light alarm device to show the 4th predetermined color, and sends the 4th predetermined sound cue.
Preferably, described alarm module also comprises that text presents device, for presenting warning according to result with text mode.
Preferably, described alarm module also comprises: alarm shield device, and for allowing or specify alarm source report and alarm event.
Preferably, described the first monitor server is a plurality of, described optic-fiber monitoring system also comprises the second monitor server and integrated communications network administration subsystem, described the first monitor server is connected to described the second monitor server, described the first monitor server and/or the second monitor server are connected to described integrated communications network administration subsystem, described the first monitor server, also specifically for reporting the complaint message of lightguide cable link and the beginning and ending time of lightguide cable link obstacle according to described result to described integrated communications network administration subsystem;
Described monitoring main frame is connected to described integrated communications network administration subsystem, while breaking down for being connected between monitoring main frame and the first monitor server, described result is sent to integrated communications network administration subsystem.
Preferably, described monitoring modular also comprises coupler, and described coupler is connected between optical transmitter and receiver and light signal port, for sending to described microprocessor by light signal port after the signal coupling that optical transmitter and receiver is received from multifiber.
Preferably, described the first monitor server or the second monitor server comprise database, the remaining long length information of joint location, connector rod, optical cable future part bar position and reserved optical cable that comprises lightguide cable link for canned data, and optical cable data, joint data, the optimization test parameter of every testing fiber, alarming threshold value parameter, communication path and code address information, every velamen monitoring optical cable route geography information and geographical relationship database.
The optic-fiber monitoring system of the embodiment of the present application can long-range, online, automatically be monitored whole lightguide cable link, the variation of Real-Time Monitoring optic fibre characteristic and variation tendency, find the timely alarm of fault, effectively reduce and prevent Cable's Fault, accurately determine Cable's Fault position, compression fault is lasted, and alleviates attendant's work load.As the new means of fiber optic cable maintenance, can guarantee the safe and highly efficient operation of lightguide cable link.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the composition structured flowchart of an embodiment of the application's optic-fiber monitoring system;
The composition structural representation of the monitoring main frame in another embodiment that Fig. 2 (a) is the application;
The composition structural representation of the monitoring main frame in another embodiment that Fig. 2 (b) is the application;
Fig. 3 is the two-level network structural representation in another embodiment of the application;
Fig. 4 is the monitoring principle schematic diagram that the OTDR of the application's embodiment tests.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only a part of embodiment of the application, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 1, the figure shows the structured flowchart of the optic-fiber monitoring system that the embodiment of the present application provides.This optic-fiber monitoring system comprises: a plurality of monitoring main frames 11, and comprise alarm module 121 with the first monitor server 12, the first monitor servers of being connected of monitoring main frame 11, monitor main frame and comprise monitoring modular 111.The monitoring modular 111 of the present embodiment can comprise optical transmitter and receiver 1111, light signal port 1112 and microprocessor 1113, optical transmitter and receiver 1111 connects light signal port 1112, light signal port 1112 is connected with microprocessor 1113 by data/control bus, optical transmitter and receiver 1111 can be for receiving the light signal after testing fiber transmission, microprocessor 1113 can be for processing send the light signal of microprocessor to through light signal port 1112, and result is sent to the first monitor server 12.Under different application scenarioss, the composition structure of monitoring modular may change.Such as, when the use state according to testing fiber is divided into optical fiber with optical fiber and non-during with optical fiber (comprise standby optical fiber or empty fine), can there is difference in the composition of monitoring modular:
For for optical fiber, shown in Fig. 2 (a), the monitoring modular 111 of above-described embodiment can be light power monitoring measuring unit A111 in another embodiment, described light signal port is luminous power port A1112, described light power monitoring measuring unit comprises optical splitter A1113, for the light signal that optical transmitter and receiver is received, according to predetermined splitting ratio, carry out light splitting, a branched optical signal after light splitting is given described microprocessor by optical-signal end port transmission, described microprocessor comprises the first comparator, for the power of described light signal and pre-set threshold value are compared, result is relatively sent to the first monitor server,
For non-with for optical fiber, shown in Fig. 2 (b), the monitoring modular 111 of above-described embodiment can be optical time domain reflection unit B 111 in another embodiment, described light signal port is switching element B1112, described optical time domain reflection unit comprises pulse laser B1113, for injecting light pulse to described testing fiber, described light pulse sends described microprocessor to by the switching element of opening, described microprocessor comprises the second comparator, for test optical fiber curve and the predetermined curve that light pulse is formed after testing fiber, compare, result is relatively sent to the first monitor server.
From above-mentioned two type optical fibers, its light source having of different fiber types is different.For using optical fiber, owing to having light signal in its optical fiber, can additionally increase light signal, and adopt optical splitter that the light signal transmitting in optical-fibre channel is carried out to light splitting according to predetermined light splitting ratio, by the light signal branching away for realizing fiber-optic monitoring, generally, for guaranteeing the normal transmission of light signal to data, can be by a fraction of light signal after optical splitter separates for fiber-optic monitoring.For non-, with optical fiber, due to current, not in use state, in this optical-fibre channel, there is no in advance light signal, therefore, can adopt pulse laser as light source, in optical fiber to be monitored, inject light signal.Meanwhile, from above-mentioned two type optical fibers, also there is difference in its corresponding monitoring target of different fiber types.For with optical fiber, can monitor in the transmission situation with optical signal power in optical fiber, the optical signal power that is about to receive and predefined threshold values compare, and result is relatively sent to the first monitor server; For non-, with optical fiber, can monitor the non-test optical fiber curve condition forming with light pulse in optical fiber, be about to test optical fiber curve and predefined test optical fiber curve and compare, the result is relatively sent to the first monitor server.It should be noted that, foregoing has been introduced respectively the composition structure of monitoring main frame independently for different scenes, in actual application, also can as required both be combined to use.
In the above-described embodiments, only comprised one-level monitor server, this monitor server can be ground, the LMC of district level monitoring center, in actual application, except ground, district monitoring center, (RTU in figure is for representing monitoring main frame) as shown in Figure 3, also may there is the provincial PMC of monitoring center or above monitoring center, thereby form two-level network monitoring of structures, certainly, can also form more multistage network monitor structure.In situation for two-stage, in another embodiment of the application, the second monitor server can be comprised, at the second monitor server, a plurality of the first monitor servers can be had under its command.
Foregoing is described the composition structure of the embodiment of the present application, take below to inject light source and the basic principle of fiber-optic monitoring is introduced as example.
After determining testing fiber, by pulse laser to the pulse of tested optical fiber utilizing emitted light, this light pulse is when by optical-fibre channel, because optical fiber exists the Microinhomogeneity characteristic of refractive index and the feature that optical fiber microscopic characteristics changes, make a part of light pulse meeting depart from the original direction of propagation and to space scattering, there are two kinds of situations in scattering: the one, and back scattering, the 2nd, forward scattering.In back scattering situation, rear orientation light back-propagation is during to optical fiber top, and the light end receiver that is arranged on top receives light pulse, sends microprocessor process by light shutter device.Due to a measuring point on the equal corresponding fiber buss of scattered light of each back-propagation, by microprocessor, the time delay of scattered light is calculated and got final product to obtain the position on fiber buss, thereby determine the fault point on optical fiber.In actual application, when there is a plurality of optical fiber to be tested, can also coupler be set at microprocessor front end, the light pulse coupling receiving on a plurality of optical fiber is sent to the microprocessor on monitoring modular.
Conventionally because back scattering may exist Rayleigh scattering, Raman scattering and Brillouin scattering, Rayleigh (RayLeigh) scattering is that the minor variations by optical fibre refractivity causes, its frequency is identical with incident light; Raman (Raman) scattering is interacted and is caused by photon and optical phonon, and its frequency and incident light differ tens Terahertzs; Brillouin (Brillouin) scattering causes by elasticity acoustic wavefield low frequency phonon interaction in photon and optical fiber, and its frequency and incident light differ tens GHzs.For different scattering types, microprocessor can adaptability obtain different conclusions.Such as, for Brillouin (Brillouin) scattering, can use it for measuring optical fiber Strain Distribution along the line.
As previously mentioned, the test optical fiber mode that the present embodiment adopts can comprise following two kinds: the one, and optical time domain reflection (OTDR, Optical Time Domain Reflectormetry) test, the 2nd, luminous power test.Referring to Fig. 4, the figure shows the monitoring principle of OTDR test, in the drawings, 30 is testing fiber, and 31 is switching element, and 32 is test channel, and 33 is data/control bus, and 34 is microprocessor, and 35 is program control multichannel.OTDR test can directly be taken turns and sweep testing fiber, draws the characteristic of tested optical fiber, and its test wavelength can be 1625nm, 1550nm, 1310nm etc.Different wavelength, test performance there are differences: 1625nm is special-purpose test wavelength, in use test not can with the clashing by communication wavelengths of user; In addition, 1625nm test wavelength is more responsive than the bending to optical fiber in test of 1550,1310 wavelength, therefore crooked class problem is more prone to find in test; Shortcoming is identical dynamic range OTDR, 1625nm wavelength slightly more expensive; 1550nm, 1310nm are conventional communication wavelengths, therefore, this type of wavelength can not for identical wavelength in fibre test, otherwise can clash with the signal of communication with optical fiber, impact is communicated by letter.If do not determine and use in system in fibre test, can adopt.
Above-mentioned two kinds of method of testings respectively have pluses and minuses: OTDR test once to need the time of several minutes, if monitored optical fiber is many, the time that full test is one time is just long, has lost the real-time of alarm.And, if strengthen the sweep test frequency of OTDR, also can shorten the useful life of OTDR, therefore, in actual use, often OTDR is used in combination together with optical power monitoring.Optical power monitoring for fast monitored with optical fiber or be added in advance the variation of intensity of the optical power signals of standby fibre.In normal use, the luminous power in optical fiber is basicly stable, once optical fiber is subject to external action or the deteriorated defined threshold that surpasses, optical power monitoring equipment just can send alarm in time, so optical power monitoring is a kind of Real-Time Monitoring.In actual use, optical power monitoring and OTDR are used in combination the monitoring effect that can reach best.
In actual application, the optic-fiber monitoring system by the embodiment of the present application can carry out multi-class test optical fiber, such as a, routine test, i.e. and the transmission quality of long-term follow lightguide cable link, this category of test can be found the problems such as optical fiber is deteriorated in time.B, the test of calling the roll, need to send instruction according to interim, realizes specifying the test of fibre circuit.C, trouble alarm test.Monitoring main frame RTU, according to the warning information from light power monitoring measuring unit (OPM), tests relevant optical cable through the storehouse table that inquiry is built-in.D, simulation alarm test.The confirmation test function of alarm-monitor module reliability service in monitoring main frame RTU.Similarly, the optic-fiber monitoring system by the embodiment of the present application can carry out the test of entry, such as comprising: the full range transmission loss of optical-fibre channel and the optical length of optical fiber thereof; The loss of optical fiber splice; Optical fiber attenuation coefficient between two tap points; Maximum discrete reflectance between S point and R point (formula of advising defined in accessories B G.957 according to ITU.T calculates).
Although can realize the monitoring to optical fiber by previous embodiment, but, in actual application, after obtaining the test result of fiber-optic monitoring main frame, also need the test result to obtaining to carry out some processing, such as, in appropriate mode, at Monitoring and Controlling center, (the first monitor server) presents, to facilitate relevant staff to make full use of this monitoring result, or further take analysis operation etc.
For presenting operation, the test result of monitoring main frame is after being transferred to the first monitor server, and the first monitor server can be represented in several ways, realizes alarm.Such as, in modes such as voice, figure or texts, present.Take text display and audible and visual alarm below describes as example:
One of execution mode: word shows.Monitoring host test is to after the relevant situation of optical fiber, sends to the first monitor server directly with mode word, to be presented in face of information user result, and this is a kind of directly effective mode.Following table shows a kind of situation of word performance position of failure point:
Two of execution mode: audible and visual alarm.When test result meets default alarm conditions, can also carry out auto-alarming.Present embodiment is to being divided into the rank of alarm four ranks, different ranks is carried out different alarm modes for different contents: Level 1Alarming: during the above event of burst 5dB (containing fibercuts), or RTU is while finding cisco unity malfunction after by self check, to LMC, passes report.In this case, the judgement in the alarm module of the first monitor server selects circuit to select to trigger the first sound and light alarm device, is shown that look is red, the cue of sounding by first sound electro-optical device on fiber cable network topological diagram; Secondary alarm: optical-fibre channel full range transmission loss value is during than the fiber optics length of the large 5dB of final acceptance of construction value (or initial data) or 0.1dB/km * optical-fibre channel, or the loss value of minority optical fiber splice increase to 2dB(threshold value can be by default) time, to LMC, pass report.In this case, the judgement in the alarm module of the first monitor server selects circuit to select to trigger the second sound and light alarm device, is shown that look is pink, the cue of sounding by rising tone electro-optical device at Monitoring and Controlling center on fiber cable network topological diagram; Three grades of alarms: when the increment of optical fiber full range transmission loss value is 1～5dB, or when in lightguide cable link, in certain dish optical cable, the increment of each monitored optical fiber attenuation coefficient is all greater than 0.1dB/km, or the increment of indivedual opticalfiber splicing loss values is that 0.5dB(threshold value can be by default) time, to LMC, pass report.In this case, the judgement in the alarm module of the first monitor server selects circuit to select to trigger the 3rd sound and light alarm device, is shown that look is yellow, the cue of sounding by the 3rd acousto-optic device at Monitoring and Controlling center on fiber cable network topological diagram; Level Four alarm: when communication network breaks down, pass report to LMC.In this case, the judgement in the alarm module of the first monitor server selects circuit to select to trigger falling tone light alarm device, is shown that look is grey by falling tone electro-optical device at Monitoring and Controlling center on fiber cable network topological diagram.If do not broken down or do not meet default alarm conditions, be considered as normal condition, shown in green on fiber cable network topological diagram.
From foregoing description, can find out, this mode that warning information is carried out to sub-category alarm of the first monitor server is corresponding with the function of fiber-optic monitoring equipment, monitor main frame by the monitoring of self, at communication network, break down or in-house facility breaks down etc. under situation, produce immediately alarm and send warning information to LMC.When RTU cannot communicate with LMC, RTU can be by the communication synthesis webmaster report information arranging in optic-fiber monitoring system; When producing continuously same other alarm of level because of the same source of trouble, can only report this alarm once; When fault disappears, should report to LMC, to eliminate corresponding warning information.
In actual application, above-mentioned two kinds of alarm modes can be combined with, and, when alarm occurs, one side is display alarm Word message in current alarm record, the schematic diagram of display alarm optical cable on fiber cable network topological diagram on the other hand, and according to the prompting of sounding of setting in advance.In addition, all right outputting alarm contact, and timely automatic printing goes out the necessary first-hand particulars of all maintenances repairings as required.When operator on duty carries out acknowledged alarm, alarm clearance operation, the color on fiber topology figure changes.When if (time can establish) alarm is not confirmed at the appointed time, system can be passed through the means of communication such as note, automatic seeking pager automatically, automatically informs relevant administrative staff.
Further, for warning information, can also adopt optimized algorithm, the poor problem of transmission characteristic of bringing to solve preferably short optical cable multistage serial connection, and then discriminatory analysis goes out Cable's Fault and case point better, prevents mistake alarm or leaks alarm.The mode of above-mentioned alarm can be set to automatically, also can be set to manual activation mode, the application can provide an interface, by this interface, alarm shield is set, in the time need to carrying out the alarm of certain mode, open this corresponding alarm function, while not needing, close corresponding alarm function.In addition, can also carry out pre-alarm function.The former reference curve of the current curve recording of OTDR (on time to all monitored test optical fibers) automatic and this optical fiber compares, if finding that there is reflection peak or the step of sudden change occurs, or the attenuation coefficient of certain case point of this optical fiber is abnormal becomes large, again in conjunction with the factors such as date of manufacture of optical cable, can comprehensively judge that this fiber optic cable enters the deteriorated phase or occurred performance degradation because external force affects (though blocking-up obstacle does not occur), thereby warn alert signal, draw attention.
Above-mentioned alarm process be optical fiber test equipment by fiber-optic monitoring testing of equipment to the alarm that provides of result, yet, based on actual needs, can also improve above-mentioned alarm mode.Such as, above-mentioned alarm mode is moved forward, be about to warning information as the trigger message that starts fiber-optic monitoring.For realizing this mode, can in fiber optic network, arrange a plurality of transducers, when certain transducer receives optical fiber for information about, to the first monitor server, send a warning message, by monitor server, control optical fiber monitoring equipment (monitoring main frame) this optical fiber is tested.LMC receives after alarm signal, starts RTU alarm optical fiber is tested.After receiving the obstacle curve data file of RTU passback, 3 minutes (sections in) or complete obstacle analysis report in (across section) in 5 minutes, distinguish that the position of barrier point and barrier point are from the position of forward and backward tap points, record the obstacle time occurring and the time of accepting response, by the interface with integrated communications network administration subsystem, send signalling trouble list, and send alarm signal to comprehensive network management.For carrying out exactly the location of barrier point, need to carry out the correction of fiber lengths/cable length/route length; During monitored optical fiber generation obstacle, automatically carry out trouble alarm test: start any that the signal of trouble alarm test can be from following alarm signal: the warning information that integrated communications network administration subsystem or supervisory control system provide.
The optic-fiber monitoring system of the embodiment of the present application can long-range, online, automatically be monitored whole lightguide cable link, the variation of Real-Time Monitoring optic fibre characteristic and variation tendency, find the timely alarm of fault, effectively reduce and prevent Cable's Fault, accurately determine Cable's Fault position, reach compression fault and last, alleviate the object of attendant's work load, as the new means of fiber optic cable maintenance, can guarantee the safe and highly efficient operation of lightguide cable link.Foregoing have been described in detail fiber-optic monitoring technology and alarm process.In fact, on fiber-optic monitoring basis, the application can also increase many other functions of expansion, to realize omnibearing fiber-optic monitoring.Exemplarily provide several functions below.
One of expanded function: system configuration function
(1) LMC configuration management: the configuration of monitoring device is carried out to integral body and control.
The title of equipment in configuration-system is, the annotation information of the address of equipment and equipment;
Terminal and the direction of configuration lightguide cable link;
With figure or tabular form, show configuration object or configuration data;
Configuration data attribute checks and configuration data inquiry, retrieval and printing function;
Configuration data consistency audit function.Can check the consistency of corresponding data in far data and local data base, and show corresponding information.
(2) configuration management relevant to RTU:
LMC can arrange and the test route sequence number of interior each RTU of range of management and the corresponding relation of each monitored optical fiber.This corresponding relation, when determining or change, need report communication synthesis webmaster;
LMC can arrange the also login password of interior each RTU of range of management.This password, when determining or change, need report communication synthesis webmaster;
LMC can arrange also parameter and the state (comprising the upgrading of software version) of interior each RTU of long-range lower dress range of management testing equipment when calling the roll test and routine test, and these parameters comprise monitoring periods, OTDR module parameter (pulsewidth, range, average test number of times and time, wavelength) etc.;
LMC has the function of specifying fiber optic cable monitor curve data file to be set to this optical fiber reference curve;
Request RTU reports the situation of its active configuration, comprises state and the software version number of hardware;
The maintenance entity that notice RTU newly installs, and the maintenance entity that starts to monitor new installation;
The clock that RTU is set is existing date and time;
Configure a database relevant with RTU, so that long-range lower dress, renewal or the upgrading new procedures relevant with RTU;
All or part of content in inquiry RTU database also backs up as required, to can take out when RTU out of memory under standby copy, fills to RTU.
Two of expanded function: fiber cable network resource management function
Fiber cable network operator is in design, construction and the maintenance process of lightguide cable link, produced a large amount of data informations relevant to line facility, therefore, how scientifically to manage optical cable transmission system rational distribution of resources resource used, the actual operating state of reflection resource, the modernization that realizes its malfunction monitoring and resource management is the task of top priority.The fiber cable network resource management system of optical cable auto monitoring and total management system has been set up powerful Database Systems, the GIS versatility of application of advanced is supported custom system, is managed lightguide cable link data efficiently, for the management and decision of science provides technical support, effectively improve efficiency of operation and benefit.
(1) district management
When communication network covering region is larger, for the ease of management, often from Shang Duiqi zoning, geographical position.Region refers to management area, the website of some, consists of, relevant with institute of office, website Administration partition, and changes with the change of Administration partition, but the change of Administration partition does not affect other attributes and the network attribute of equipment in website.
(2) office manages
Institute of office is as a communications management unit, and its subordinate has some tandem exchanges, machine building.Therefore the management of institute of office except record communication office essential information own, also managed all tandem exchange, the machine buildings of its subordinate.
(3) pipeline (boundary mark) management
The management of pipeline (boundary mark) is exactly by the information data of storage, analysis pipeline (boundary mark), generates the resource topology figure of communication network, and the position of sign optical cable, for fiber optic cable maintenance provides location, construction information accurately.
(4) calculator room equipment management
Important transmission equipment and the facility of communication have been installed in machine room, as place the resources such as frame, transmission equipment, ODF frame, DDF frame, can be that nobody holds the machine room of keeping, a kind of valuable source as communication line, system is managed it, storage room configuration information, the actual behaviour in service of reflection various device resources.
(5) optical cable (fibre core) network management
Optical cable (fibre core) network management completes the management to hop optical cable, access section optical cable (trunk, distribution, family line), fiber cable joint, Optical cross connects case, light fiber-dividing box, optical cable future part etc.Fiber optic cable management need to form the essential information data of optical cable, and it is carried out to Dynamic Maintenance, and meanwhile, location and line upkeep that the internal association of the formation such as itself and route, boundary mark is managed finally as fault provide necessary service.
(6) optical routing management
Optical routing is the passage unit of light transmission.Conventionally it is to be formed by connecting by an optical fiber or several optical fiber.Optical routing management is the most basic is that will to identify certain route be that optical fiber by which bar optical cable connects into.
(7) the lightguide cable link database of storing and upgrade in time
In the database of LMC, store and the data that upgrades in time has following several:
The joint of lightguide cable link, manhole and reserved etc. position, position, built on stilts pole line, comprises connector rod and optical cable future part bar position, and the remaining long length of reserved optical cable;
Optical cable data, as: fiber optic cable manufacture factory, cable configuration, model and numbering, number of fibers and group index thereof etc.;
Joint data, as: joint categories, connector box type and splicing loss etc.;
The ODF model of every velamen monitoring optical fiber, the information such as position and terminal;
The attenuation coefficient of optical fiber and optical length thereof etc. between two tap points;
Optimization test parameter (default parameter) and the alarming threshold value parameter thereof of every velamen monitoring optical fiber;
Every velamen monitoring communication path of optical fiber and the address information of code;
Geography information and the geography information relational database thereof of every velamen monitoring optical cable route;
After completion, monitor the reference curve data of optical fiber history and current reference curve data with the rear every velamen of reparation;
The unit of maintenance of monitored lightguide cable link and safeguard the database of region;
Other user-defined optical cable data informations.
Three of expanded function: function of statistic analysis
(1) data analysis.Data analysis function comprises optical fiber attenuation coefficient, optical connector position, optical fiber splice and the breakpoints of optical fiber position between the comparative analysis, full range transmission loss, omnidistance optical length, splicing loss, two tap points of optical fiber curve data, and can be according to a certain optical fiber the curve data in a period of time analyze the time behavior of its splicing loss and fibre loss;
Can input and preserve the OTDR test optical fiber curve data of manual measurement;
LMC analyzes, processes the test data file of RTU passback, and the cycle passes the data file of the monitored lightguide cable link operation conditions in report this area to communication synthesis webmaster in accordance with regulations;
Report capability, comprises fibre loss statistical report form, optical fiber property analytical statement, test optical fiber analytical statement; LMC can generate corresponding form according to fixed time section, appointment optical cable and optical fibres section;
Possesses the ability that a plurality of RTU station reports all kinds alarm simultaneously of processing.
(2) report form statistics.LMC can generate corresponding form according to fixed time section, appointment optical cable and optical fibres section, appointment alarm level, appointment alarm source by user's oneself requirement.
Cable's Fault statistical form
Fiber failure statistical form
Fiber resource management form
Monitoring device form
Four of expanded function: performance safety management.
(1) safety management.The safety that guarantees optical cable monitoring system, prevents the intrusion of unauthorized user, completes security control and invades recovery tasks.
Increase, delete, revise account number, password and the authority of login user;
The Systems Operator's of provisioning change RTU running status rank;
Automatically record user's each time login activity and cause the key operation that system data changes or state changes, and can inquire about, back up and delete log file;
LMC can preserve all data by the holding time of customer requirement;
System can regularly detect and virus sweep;
System has the ability that protection is stored in data in LMC database;
System can provide the backup of protected data in time, or starts Hot Spare handling procedure, to recover destroyed data.
(2) performance management:
Request RTU report routine test at that time or the data file of the test of calling the roll;
Setting or change RTU carry out timetable and the related optical fiber list of routine test of routine test;
Its existing clock time of request RTU report;
LMC can regularly or according to the operating state of each entity of instruction scan RTU and the state of communication network, regular intervals of time be by default.
It should be noted that: easy for what narrate, the various distortion implementations of above-described embodiment of this specification and embodiment stress is all the difference with other embodiment or mode of texturing, between each situation identical similar part mutually referring to.Each unit of device described above, system embodiment can or can not be also physically to separate, and both can be positioned at a place, or also can be distributed to a plurality of net environments.In actual application, can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme, those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
The above is only the application's embodiment; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.
Claims (8)
1. an optic-fiber monitoring system, is characterized in that, this system comprises: a plurality of monitoring main frames, and the first monitor server, described monitoring main frame is connected to the first monitor server, and described monitoring main frame comprises monitoring modular, wherein:
Described monitoring modular comprises: for receiving the optical transmitter and receiver of the light signal after testing fiber transmission, and light signal port and microprocessor, described optical transmitter and receiver connects light signal port, described light signal port is connected with microprocessor by data/control bus, described microprocessor is used for processing give the light signal of microprocessor through optical-signal end oral instructions, and result is sent to the first monitor server;
Described the first monitor server comprises alarm module, for reporting to the police according to result after receiving the result of microprocessor.
2. system according to claim 1, is characterized in that,
At described testing fiber, be when using optical fiber, described monitoring modular is specially light power monitoring measuring unit, described light signal port is luminous power port, described light power monitoring measuring unit comprises optical splitter, for the light signal that optical transmitter and receiver is received, according to predetermined splitting ratio, carry out light splitting, a branched optical signal after light splitting is given described microprocessor by luminous power port transmission, described microprocessor comprises the first comparator, for the power of described light signal and pre-set threshold value are compared, result is relatively sent to the first monitor server;
When described testing fiber is standby optical fiber or empty fibre, described monitoring modular is specially optical time domain reflection unit, described light signal port is switching element, described optical time domain reflection unit comprises pulse laser, for injecting light pulse to described testing fiber, described light pulse sends described microprocessor to by the switching element of opening, described microprocessor comprises the second comparator, for test optical fiber curve and the predetermined curve that light pulse is formed after testing fiber, compare, result is relatively sent to the first monitor server.
3. system according to claim 1, is characterized in that, described alarm module comprises judgement selection circuit, and the first sound and light alarm device, the second sound and light alarm device, the 3rd sound and light alarm device and falling tone light alarm device,
When knowing according to described result the accident comprising more than 5dB, judgement selects circuit triggers the first sound and light alarm device to be shown as the first predetermined color, and sends the first predetermined sound cue;
When knowing that according to described result optical-fibre channel full range transmission loss value is than primary data more than large 5dB, or, when the failure values of optical fiber splice increases to 2dB, judgement selects circuit triggers the second sound and light alarm device to be shown as the second predetermined color, and sends the second predetermined sound cue;
When knowing that according to described result the increment of optical fiber full range transmission loss value is 1 to 5dB, or when in lightguide cable link mid-game optical cable, the increment of each monitored optical fiber attenuation coefficient is greater than 0.1dB/km, or, when the increment of opticalfiber splicing loss value is 0.5dB, judgement selects circuit triggers the 3rd sound and light alarm device to be shown as the 3rd predetermined color, and sends the 3rd predetermined sound cue;
When knowing that according to described result communication network breaks down, judgement selects circuit triggers falling tone light alarm device to show the 4th predetermined color, and sends the 4th predetermined sound cue.
4. system according to claim 3, is characterized in that, described alarm module also comprises that text presents device, for presenting warning according to result with text mode.
5. system according to claim 3, is characterized in that, described alarm module also comprises: alarm shield device, and for allowing or specify alarm source report and alarm event.
6. according to the system described in any one in claim 1 to 5, it is characterized in that, described the first monitor server is a plurality of, described optic-fiber monitoring system also comprises the second monitor server and integrated communications network administration subsystem, described the first monitor server is connected to described the second monitor server, described the first monitor server and/or the second monitor server are connected to described integrated communications network administration subsystem, described the first monitor server, also specifically for reporting the complaint message of lightguide cable link and the beginning and ending time of lightguide cable link obstacle according to described result to described integrated communications network administration subsystem,
Described monitoring main frame is connected to described integrated communications network administration subsystem, while breaking down for being connected between monitoring main frame and the first monitor server, described result is sent to integrated communications network administration subsystem.
7. system according to claim 6, it is characterized in that, described monitoring modular also comprises coupler, and described coupler is connected between optical transmitter and receiver and light signal port, for sending to described microprocessor by light signal port after the signal coupling that optical transmitter and receiver is received from multifiber.
8. system according to claim 6, it is characterized in that, described the first monitor server or the second monitor server comprise database, the remaining long length information of joint location, connector rod, optical cable future part bar position and reserved optical cable that comprises lightguide cable link for canned data, and optical cable data, joint data, the optimization test parameter of every testing fiber, alarming threshold value parameter, communication path and code address information, every velamen monitoring optical cable route geography information and geographical relationship database.
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| CN201310686437.0A CN103647601A (en) | 2013-12-13 | 2013-12-13 | Fiber monitoring system |
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| CN201310686437.0A CN103647601A (en) | 2013-12-13 | 2013-12-13 | Fiber monitoring system |
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