CN102523037B - Centralized monitoring and managing system for optical cable resources - Google Patents

Centralized monitoring and managing system for optical cable resources Download PDF

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CN102523037B
CN102523037B CN201110376086.4A CN201110376086A CN102523037B CN 102523037 B CN102523037 B CN 102523037B CN 201110376086 A CN201110376086 A CN 201110376086A CN 102523037 B CN102523037 B CN 102523037B
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monitoring
optical fiber
optical
multichannel
division multiplexer
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CN102523037A (en
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林亦雷
杨铭
卢士达
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State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
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State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
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Abstract

The invention relates to a centralized monitoring and managing system for optical cable resources. A system structure based on two stages of monitoring and managing platforms and a layer of monitoring and operating platform is at least regulated and controlled by the two stages of monitoring centers of a province and city stage and a region stage, and the monitoring of various modes of optical time domain reflectometer (OTDR) test, light power test, linking test thereof and the like is also provided to an optical fiber in use or a standby fiber in an optical fiber network at an executing lay by a plurality of monitoring stations correspondingly. The system also provides an abundant system managing function; especially, a resource topology drawing of an entire network can be drawn according to the configuration parameter of the system; and the operation of quick and accurate positioning during maintenance and fault examination is assisted by utilizing a geographic information system (GIS) technology. Therefore, according to the system disclosed by the invention, the expense of manpower and financial resources for maintenance and management can be effectively reduced, and the time of fault diagnosis and treatment is effectively shortened, so that the safe and stable running of the entire network is ensured.

Description

Cable resource is concentrated monitoring administrating system
Technical field
The present invention be more particularly directed to a kind of cable resource and concentrate monitoring administrating system.
Background technology
Because optical fiber communication has a series of superiority at aspects such as transmission range, transmission rate and stability, therefore, its application is deep into national economy and each field of daily life day by day, becomes indispensable link.For example, electric power optical cable has three main applications: the one, and the operating relaying protection data exchange of power network and instruction transmission; The 2nd, network system periodic traffic work He Wei telecom operators provide transmission channel convenient; The 3rd, in intelligent grid, information exchange and operation index signal are carried.
Because optical fiber is physical bodies, itself has the life problems of performance degradation, adds the impact of all kinds of contingencies such as bad weather and external impacts, easily produces optical cable damage, outage, impact communication.Therefore, whether can effectively predict cable variation trend, judge and process fiber failure and seemed very important in time, become the fault time that reduces optical cable and improved communication quality, ensure electric power netting safe running, increased the important means of operation income.
Yet, traditional detection method is on fibre distribution frame (ODF), first to search out tested optical cable by technical staff, use again Optical Time Domain Reflectometer (hereinafter to be referred as OTDR equipment) to test this its, and then by manually gathering and analyzing, workload is large, expenses is very large, but maintenance effects is limited.And, once there is communication failure, need first from transfer check, to judge, then fault paragraph is found to a certain optical cable, arrange afterwards technical staff's librarian use instrument to test, locate, understand like this test and the repairing time of delay fault.And crooked in the time of also may laying because optical cable is actual and in the fine length of dish that hoistway etc. is located to reserve, makes the location of this fault accurately not, affects repairing speed.In addition, for example optical fiber quality deteriorated is a progressive formation, may be to the eye or single test result all do not see problem, but in internal structure, had very large hidden danger, so general measure is difficult to find.
On the other hand, optical cable, as a kind of passive transmission medium, is not yet developed self detection alarm function at present, can only rely on external system that its state condition is monitored and managed.But existing, fiber cable network resource is carried out to the system of maintenance and management, a simple resource record system just, lacks and the interlock of automatic test equipment, does not more possess the scheduling feature of maintenance.By existing fibre optic transmission equipment, can find certain route spot fault, but cannot be quantitatively and location fault scene, will inevitably incur loss through delay troubleshooting opportunity, cause larger economic loss; Utilize communication equipment to detect simultaneously and also do not possess forecast function, cannot provide strong support for optical cable planning.
And traditional maintenance management be take written as main, cannot cause various forms, data to be accumulated over a long period and huge directly in computer system memory storage, it is all very inconvenient to check, contrast.Owing to building and using, be different unit or departments in addition, in the data of collection aspect tested tissue and examination, may have different, give the optical cable state variation analytical work in later stage and upgrade plan to leave defect.
Therefore, set up one and improve and fiber optic cable monitor management system independently, strengthen the management of optical cable and guarantee, be necessity very in the current and following power communication.
Summary of the invention
The object of this invention is to provide a kind of cable resource and concentrate monitoring administrating system, the system architecture that adds monitoring station with two-stage management, realization is to several functions such as the optical power monitoring of optical fiber, test optical fiber (OTDR test), fault warning processing, data query, report form statistics, system configuration, user management and fiber cable network resource managements, thereby can find in time that optical fiber is deteriorated, and quick and precisely locate fault zone, reduce manpower financial capacity's spending of maintenance management, guarantee the safety and stability of optical fiber power communication.
In order to achieve the above object, technical scheme of the present invention is to provide a kind of cable resource and concentrates monitoring administrating system, described system has the management monitoring of structures of multilevel hierarchy, comprises at least Two monitor levels center that manages control, and some monitoring stations of carrying out fiber optic network monitoring;
Each higher level Surveillance center has connected several Surveillance center of subordinate below; Described higher level Surveillance center is to Surveillance center of subordinate sending controling instruction, and superior Surveillance center of Surveillance center of described subordinate returns to monitoring information;
The Surveillance center of each next stage has connected several monitoring stations below; Each monitoring station is provided with several monitoring modulars; Each monitoring modular is connected with some optical routings;
Described monitoring modular, according to the control command of Surveillance center described in any one-level, is monitored some optical fiber that are connected in series in described optical routing, and is returned to monitoring information to Surveillance center.
Surveillance center described in every one-level, comprises hub, and the monitoring management terminal and the data server that are attached thereto respectively; Described monitoring management terminal is also connected with data sheet printer;
Also comprise front end processor and router, be also connected with described hub respectively; According to the control command of described front end processor, via described router Jiang Gaiji Surveillance center, be connected and communicate with other Surveillance center or monitoring station.
Described in each, monitoring station includes:
Monitoring main frame, it is provided with OTDR device;
Program control Multichannel photoswitch unit, it is connected with the OTDR device of described monitoring main frame by OTDR test access, also by data/control bus, is connected with described monitoring main frame; Described program control Multichannel photoswitch unit is provided with a plurality of optical switch ports;
The monitoring modular of described monitoring station comprises OTDR test module;
In described OTDR test module, by wherein several optical switch ports of described program control Multichannel photoswitch unit, with the tested corresponding connection of some optical routings; In every optical routing, comprise some sections of optical fiber, between adjacent two sections of optical fiber, by jumping fiber, be connected in series.
Described in each, monitoring station also comprises multichannel light power monitoring measuring unit, and it is connected with described monitoring main frame by data/control bus; Described multichannel light power monitoring measuring unit is provided with a plurality of luminous power ports, is connected with tested optical routing;
The monitoring modular of described monitoring station also comprises Optical Power Monitor Module, and described Optical Power Monitor Module further comprises corresponding monitoring and using optical fiber and standby fine submodule:
Monitoring is described in using the submodule of optical fiber, further comprise the coupler being serially connected in tested optical fiber section, it is divided into two-way by the light signal of carrying via exterior light terminal transmitting terminal in this section of optical fiber, wherein a road light signal is delivered to the receiving terminal of exterior light terminal, and another road light signal is transported to described multichannel light power monitoring measuring unit;
Monitor in described standby fine submodule, further comprise multichannel stabilized light source, it is connected with tested standby fibre, and provides a small amount of laser signal for it; The described standby fine other end is connected to described multichannel light power monitoring measuring unit.
The monitoring modular of described monitoring station also comprises the standby fine monitoring modular of some standby fibres being tested in conjunction with OTDR test and optical power monitoring;
In a kind of standby fine monitoring modular of implementing structure, wherein a tested standby fine one end, by a wavelength division multiplexer, is connected with a multichannel stabilized light source and described program control Multichannel photoswitch unit respectively; The described standby fine other end is connected to described multichannel light power monitoring measuring unit by a filter, thereby this is carried out to the interlock test of single standby fiber optical power and OTDR for fibre.
In the standby fine monitoring modular of another kind of enforcement structure, wherein a tested standby fibre is connected to described program control Multichannel photoswitch unit, carries out separately OTDR test;
In described standby fine monitoring modular, another tested standby fine one end is connected to a multichannel stabilized light source, and the other end is connected to described multichannel light power monitoring measuring unit, carries out separately luminous power test;
Corresponding on described program control Multichannel photoswitch unit and multichannel light power monitoring measuring unit, connect described two standby fibres simultaneously and carry out two standby fine interlock tests.
The monitoring modular of described monitoring station also comprises in conjunction with OTDR to be tested with optical power monitoring some on-line monitoring modules of testing with optical fiber;
In a kind of on-line monitoring module of implementing structure, the transmitting terminal of described program control Multichannel photoswitch unit and exterior light terminal is connected to same wavelength division multiplexer, and by this wavelength division multiplexer, be connected to wherein one and tested using optical fiber one end, the described receiving terminal of exterior light terminal that is connected to by a filter at the other end with optical fiber, is carrying out separately OTDR test to described with optical fiber.
In the on-line monitoring module of another kind of enforcement structure, wherein the tested one end at use optical fiber connects the transmitting terminal of exterior light terminal by a filter, and the other end is connected to a coupler and described program control Multichannel photoswitch unit by a wavelength division multiplexer simultaneously;
Described coupler is assigned as two-way by light signal, and correspondence is transported to receiving terminal and the described multichannel light power monitoring measuring unit of exterior light terminal, to described, with optical fiber, is carrying out separately luminous power test.
Also have in a kind of on-line monitoring module of implementing structure, the transmitting terminal of described program control Multichannel photoswitch unit and outside first optical transmitter and receiver is connected to a first wave division multiplexer simultaneously, and by described first wave division multiplexer, be connected to wherein one and tested using optical fiber one end, this is connected to the receiving terminal of outside the first optical transmitter and receiver by a Second Wave division multiplexer at the other end with optical fiber;
Simultaneously, the transmitting terminal of outside second optical transmitter and receiver is connected to another by the 3rd wavelength division multiplexer and tested is using optical fiber one end, this connects a coupler at the other end with optical fiber by a filter, described coupler is distributed into two-way by light signal, and corresponding receiving terminal and the described multichannel light power monitoring measuring unit that flows to outside the second optical transmitter and receiver;
And, also corresponding connection between described Second Wave division multiplexer and described the 3rd wavelength division multiplexer, thus form these two in the multistage serial connection with optical fiber, carry out the luminous power of multistage serial connection and the interlock of OTDR test.
Or, in the on-line monitoring module of other structures, the transmitting terminal of described program control Multichannel photoswitch unit, first optical transmitter and receiver, a multichannel stabilized light source, be connected to the one or three wavelength division multiplexer simultaneously, and by described the one or three wavelength division multiplexer, be connected to wherein one and tested using optical fiber one end, this is connected to the receiving terminal of outside the first optical transmitter and receiver by the two or three wavelength division multiplexer at the other end with optical fiber;
Simultaneously, the transmitting terminal of outside the second optical transmitter and receiver is connected to another by the three or three wavelength division multiplexer and tested is using optical fiber one end, and this distributes to light signal by the four or three wavelength division multiplexer receiving terminal and the described multichannel light power monitoring measuring unit of outside the second optical transmitter and receiver at the other end with optical fiber; And, the corresponding connection of residue two road ports of described the two or three wavelength division multiplexer, the three or three wavelength division multiplexer, thereby form these two in the multistages serial connection with optical fiber, and by using described stabilized light source to carry out the luminous power of multistage serial connection to it and the interlock of OTDR is tested.
Compared with prior art, cable resource of the present invention is concentrated monitoring administrating system, its advantage is: system of the present invention adds the system architecture of one deck monitoring operating platform based on secondary monitoring management platform, by provincial, and municipal level PMC and local level LMC, regulated and controled, a plurality of monitoring station MS carry out, for provide the monitoring of the various ways such as OTDR test, luminous power test and interlock test thereof with optical fiber or standby fibre in communication network.System also provides abundant system management function, especially can according to system configuration parameter, draw the resource topology figure of whole network, the fast accurate location while utilizing GIS technology to help safeguard and look into barrier.Therefore, system of the present invention can effectively reduce manpower financial capacity's expenditure of maintenance management, effectively reduces the time of failure diagnosis and processing, thereby guarantees the operation that whole network security is stable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that cable resource of the present invention is concentrated the multilevel hierarchy structure of monitoring administrating system, wherein shows a power system capacity configuring condition under preferred embodiment;
Fig. 2 is equipment configuration and the syndeton schematic diagram of Surveillance center at different levels in system of the present invention;
Fig. 3 is the configuration of overall equipment and syndeton schematic diagram in monitoring station in system of the present invention;
Fig. 4 is shown in Fig. 3 in monitoring station, the configuration of the equipment of OTDR test module and syndeton schematic diagram;
Fig. 5 is shown in Fig. 3 in monitoring station, one group of equipment configuration of Optical Power Monitor Module and syndeton schematic diagram;
Fig. 6 is shown in Fig. 3 in monitoring station, one group equipment configuration and the syndeton schematic diagram of standby fine monitoring modular based on OTDR and luminous power joint test;
Fig. 7 is shown in Fig. 3 in monitoring station, one group equipment configuration and the syndeton schematic diagram of on-line monitoring module based on OTDR and luminous power joint test;
Fig. 8 is shown in Fig. 3 in monitoring station, another kind of equipment configuration and the syndeton schematic diagram of on-line monitoring module based on OTDR and luminous power joint test.
Embodiment
Below in conjunction with accompanying drawing explanation the specific embodiment of the present invention.
It is the management platform of a multilevel hierarchy that cable resource of the present invention is concentrated monitoring administrating system.In the embodiment shown in fig. 1, comprise secondary monitoring management platform, the first order Shi Yige provincial, and municipal level 10(of Surveillance center is hereinafter to be referred as PMC), the second level is that the 20(of several local level Surveillance center that is attached thereto is hereinafter to be referred as LMC); Monitoring management platform is one deck monitoring operating platform framework below, comprises and is connected to each LMC20 several monitoring stations MS30 afterwards.
Between Two monitor levels center P MC and LMC, between the LMC of local level Surveillance center and monitoring station MS30, can connect by cable networks such as DDN, DCN, TCP/IP, also can realize call via wireless networks such as GPRS, CDMA, PSTN.Communication between the LMC of monitoring station MSYu local level Surveillance center adopts foreign peoples's medium standby usage communication mode, and assurance data communication is not interrupted.The LMC of local level Surveillance center can send instruction to monitoring station MS and manage, and reality is monitored the optical fiber in network by monitoring station MS, and the situation of monitoring and maintenance is informed to the LMC of Surveillance center; Similar with it, the PMC of Surveillance center sends instruction to LMC, and the situation that the LMC of the Surveillance center feedback monitoring of subordinate is safeguarded is to the PMC of higher level Surveillance center; The PMC of provincial, and municipal level Surveillance center also can manage on behalf of another local level LMC, directly each monitoring station MS is controlled.In addition, remote monitoring terminal (not shown) can be set, connect with monitoring management points at different levels, the convenient situation of obtaining at any time each section of optical fiber.
As shown in Figure 2, the equipment in provincial, and municipal level PMC or local level LMC Surveillance center 10 and 20 substantially roughly the same, comprises monitoring management terminal 11, and it is also connected with data server 13 by hub HUB12 except being connected with data sheet printer 16; Also have front end processor 14, router one 5, be also connected with hub HUB12 respectively, for controlling communicating by letter between PMC and LMC.The mode that the equipment of the LMC of local level Surveillance center can adopt standby usage two-node cluster hot backup to use configures, and assurance system can not shut down operation.
Cooperation, referring to shown in Fig. 1, Fig. 3, mainly comprises the monitoring main frame 70 of controlling use in each monitoring station MS, and the program control Multichannel photoswitch unit 72 and the multichannel light power monitoring measuring unit 73 that are attached thereto respectively.Wherein, program control Multichannel photoswitch unit 72, multichannel light power monitoring measuring unit 73, both can be placed on MS this locality, monitoring station and also can be placed on far-end.Monitoring main frame 70 with this locality other unit between adopt bus mode to be connected, with between long-range unit module, adopt point-to-point mode to be connected, such as being with digital special line, simulation special line or adopting light MODEM--directly to utilize the modes such as empty Optical Fiber Transmission to realize communication.
In the MS of monitoring station, also comprise some couplers 78, wavelength division multiplexer 74, filter 79 and stabilized light source 75; Described program control Multichannel photoswitch unit 72 or multichannel light power monitoring measuring unit 73, the port by correspondence arranges separately, directly connects optical fiber 60, or by equipment connection optical fiber 60 such as above-mentioned couplers 78.The equipment such as described optical switch element 72, light power monitoring measuring unit 73 and coupler 78 cooperatively interact and form several monitoring modulars 40, for example test optical fiber module (being also called OTDR test module), Optical Power Monitor Module, standby fine monitoring modular, on-line monitoring module etc., the concrete connection of those monitoring modulars 40, below can specifically describe.
In the preferred embodiment shown in Fig. 1, each PMC10 of provincial, and municipal level Surveillance center connects at most the 32Ge local level LMC20 of Surveillance center, and each LMC20 of local level Surveillance center connects at most 32 monitoring station MS30.16 monitoring modulars 40 are set at most under each monitoring station MS30, and each monitoring modular 40 can be connected with 32 optical routings 50 at most.In order to make full use of the power of test (referring to transmitted power, detection sensitivity and overall attenuation) of OTDR, do not reduce again reliability, the experience of implementing according to telecommunications, in order to improve the resolution of test curve, advise that the serial connection amount in every optical routing is 8 sections of optical fiber 60 to the maximum simultaneously.Therefore, a cable resource of the present invention is concentrated in monitoring administrating system, and the Yi Ge provincial, and municipal level PMC10 of Surveillance center just can concentrate and monitor and manage 32 * 32 * 16 * 32 * 8=4194304 sections of optical fiber 60 below.
Cooperation is referring to shown in Fig. 3, Fig. 4, and Fig. 4 is the test optical fiber module of monitoring station MS of the present invention.In the monitoring main frame 70 of monitoring station MS, be provided with Optical Time Domain Reflectometer (hereinafter to be referred as OTDR device 71).Program control Multichannel photoswitch unit 72 and monitoring main frame 70, connect by OTDR test access and data/control bus.It is for example 8 that program control Multichannel photoswitch unit 72 is provided with a plurality of optical switch port k(, k1 ~ k8); Several optical switch ports k is wherein connected it is monitored with an optical routing 50 separately; In every optical routing 50, comprise some sections of optical fiber 60, between adjacent two sections of optical fiber, by jumping fiber 63, be connected in series.
The working method of described program control Multichannel photoswitch unit 72, can liken common multiple electric switch to, via the wherein effect of control program, control circuit and optical switch, can control the common contact end COM of this program control Multichannel photoswitch unit 72 and wherein optical routing 50 connections, thereby this optical routing 50 is monitored.In order to make full use of the ability of monitoring station MS monitoring route and to leave certain room for development, suggestion arranges optical routing 50 numbers of monitoring to be not more than 50 on each monitoring station MS, is 32 in above preferred embodiment.
Described test optical fiber (also claiming OTDR test) is one of Main Means of judgement optical fiber quality, fault occurrence cause, fault location.By the OTDR device 71 of monitoring main frame 70, to optical fiber 60 utilizing emitted light pulses, and utilize Rayleigh scattering, Fresnel reflection principle to receive the information that a part is returned, with the characteristic of this characterization test fiber segment.For example character due to optical fiber itself, connector, junction point, after the scattering and reflection that crooked etc. or other similar incidents produce, by precision clock, calculated the time of pulse propagation, form the test curve of changes in amplitude in time domain, because the distance of light pulse propagation time and its process is functional relation, through function, calculate and the time can be converted to distance, thereby the internal view of an optical fiber link is provided.According to the OTDR curve chart of drawing, monitor, ordinate is optical power value, and unit is db; Abscissa is distance, and unit is m.In described test optical fiber, OTDR device 71, in the situation that there is no other trigger sources, by according to the control of monitoring main frame 70, carries out repeating query sweep test to all tested optical fiber according to predetermined test period, finds optical fiber 60 problems.
Cooperation is referring to shown in Fig. 3, Fig. 5, and Fig. 5 is the Optical Power Monitor Module of described monitoring station MS.Luminous power test is Real-Time Monitoring in the optical power intensity variation of receiving terminal with optical fiber 61 or in being added in advance standby fine 62.Optical Power Monitor Module has the functions such as luminous power data acquisition, data analysis, alarming processing, data storage.Four kinds of alarm grades have been designed, by the different alarm sounds and the textual representation of different colours; When the luminous power data that collect are crossed certain alarming threshold, Optical Power Monitor Module is sent switch fault report to monitoring center, and initiatively starts default test program, and fault point is positioned.
The syndeton that described Optical Power Monitor Module is concrete is as follows: monitoring main frame 70 is connected with multichannel light power monitoring measuring unit 73 by data/control bus.It is for example 8 that multichannel light power monitoring measuring unit 73 is provided with a plurality of luminous power port g(, g1 ~ g8).For the test with optical fiber 61, in tested fiber segment, to be connected in series a coupler 78(or optical splitter), a small amount of light signal of carrying via optical transmitter and receiver transmitting terminal 76 in this section of optical fiber 61 is separated, be for example to make 97% light signal wherein deliver to the receiving terminal 77 of optical transmitter and receiver, the light signal of residue 3% is transported to the luminous power port g1 of described multichannel light power monitoring measuring unit 73.Test for standby fine 62, is also provided with a multichannel stabilized light source 75, and tested standby fine 62 is connected to it a small amount of laser signal is provided, and standby fine 62 the other end is connected to luminous power port g2.
Preferably, that OTDR test is combined with optical power monitoring, system is all carried out continual scanning to all optical power monitoring points, be significantly smaller than the cycle of OTDR routine test, therefore, once luminous power is crossed the variation of thresholding, system is immediately by alarm report and start OTDR and carry out fault test, thus can greatly shorten fault on call time.There is optical power monitoring, just can extend OTDR test period, avoided the excessive frequent starting of OTDR test, extended the useful life of OTDR device.
Cooperation is referring to shown in Fig. 3, Fig. 6, and Fig. 6 tests with optical power monitoring the standby fine 62 standby fine monitoring modulars of testing in conjunction with OTDR in the MS of monitoring station.Because each root optical fiber in one section of optical cable generally has identical performance characteristics, under most of failure conditions, also can show identical fault characteristic, therefore, can be by the test of one or more standby optical fiber in one section of optical cable, just can side reflect the fault characteristic of whole section of tested optical cable.Concrete, make to monitor main frame 70 and program control Multichannel photoswitch unit 72 and multichannel light power monitoring measuring unit 73 according to the corresponding connection of above-described mode.
Wherein, in the first wiring construction, one end of standby fine 62A, by a wavelength division multiplexer 74, is connected with multichannel stabilized light source 75 and program control Multichannel photoswitch unit 72 respectively; The other end of standby fine 62A is connected to multichannel light power monitoring measuring unit 73 by a filter 79, and so connection can be carried out to standby fine 62A the interlock test of single standby fiber optical power and OTDR.
In Second Linking Method structure, the standby fine 62B in an optical routing is connected to program control Multichannel photoswitch unit 72, and some standby fine 62B that so connect can carry out the repeating query sweep test of OTDR.
In the third wiring construction, standby fine 62C one end connects multichannel stabilized light source 75, and the other end connects multichannel light power monitoring measuring unit 73, can carry out separately luminous power test; Or arrange with Second Linking Method respective outer side edges, carry out the two standby fine interlock tests of B-C. simultaneouslyThose standby fine 62 different ports that use on multichannel stabilized light source 75, program control Multichannel photoswitch unit 72 and multichannel light power monitoring measuring unit 73.
Cooperation is referring to shown in Fig. 3, Fig. 7, Fig. 8, and Fig. 7, Fig. 8 test with optical power monitoring the on-line monitoring module testing with optical fiber 61 in conjunction with OTDR in the MS of monitoring station.Monitoring main frame 70 and program control Multichannel photoswitch unit 72 and also corresponding connection in the manner described above of multichannel light power monitoring measuring unit 73.
As shown in Figure 7, in the first wiring construction, program control Multichannel photoswitch unit 72 is connected to same wavelength division multiplexer 74 with the transmitting terminal 76 of optical transmitter and receiver, and being connected to the one end with optical fiber 61D by this wavelength division multiplexer 74, the optical fiber 61D other end is connected to the receiving terminal 77 of optical transmitter and receiver by filter 79.Some that so connect can carried out the repeating query sweep test of OTDR with optical fiber 61.
In Second Linking Method structure, optical fiber 61E one end connects the transmitting terminal 76 of optical transmitter and receiver by filter 79, and the other end is by 74 while of wavelength division multiplexer butt coupling device 78 and program control Multichannel photoswitch unit 72; Coupler 78 reallocation light signals are to receiving terminal 77 and the multichannel light power monitoring measuring unit 73 of optical transmitter and receiver.So can carry out separately luminous power test to optical fiber 61E.
In the third wiring construction, the transmitting terminal 761 of program control Multichannel photoswitch unit 72 and the first optical transmitter and receiver is connected to first wave division multiplexer 741, and be connected to and use optical fiber 61F by this wavelength division multiplexer 741, the optical fiber 61F other end is connected to the receiving terminal 771 of the first optical transmitter and receiver by Second Wave division multiplexer 742.Simultaneously, the transmitting terminal 762 of the second optical transmitter and receiver is connected to and is being used optical fiber 61G one end by the 3rd wavelength division multiplexer 743, the optical fiber 61G other end is by filter 79 butt coupling devices 78, and coupler 78 is distributed to light signal receiving terminal 772 and the multichannel light power monitoring measuring unit 73 of the second optical transmitter and receiver.And, also corresponding connection between Second Wave division multiplexer 742 and the 3rd wavelength division multiplexer 743, thus realize in the multistage serial connection with optical fiber F and G, be convenient to carry out the luminous power of multistage serial connection and the interlock of OTDR test.
As shown in Figure 8, in the 4th kind of wiring construction, transmitting terminal 761, the multichannel stabilized light source 75 of program control Multichannel photoswitch unit 72, the first optical transmitter and receiver are connected to the one or three wavelength division multiplexer 745, and be connected to and use optical fiber 61H by described the one or three wavelength division multiplexer 745, the optical fiber 61H other end is connected to the receiving terminal 771 of the first optical transmitter and receiver by the two or three wavelength division multiplexer 746.Simultaneously, the transmitting terminal 762 of the second optical transmitter and receiver is connected to optical fiber 61I one end by the three or three wavelength division multiplexer 747, and the optical fiber 61I other end is by the four or three wavelength division multiplexer 748(or wavelength division multiplexer 74) light signal is distributed to receiving terminal 772 and the multichannel light power monitoring measuring unit 73 of the second optical transmitter and receiver.And, the corresponding connection of residue two road ports of second, third three wavelength division multiplexer 746,747.With this syndeton, can use external stabilization light source 75, carry out luminous power and the OTDR interlock test of multistage serial connection.
Because standby fine testing cost is low, need seldom or there is no interventional instrument (coupler etc.), engineering construction does not affect proper communication, and the optical fiber serial connection while carrying out multistage test in tested optical routing is convenient, is specially adapted to the monitoring in the fine situation of free remaining light.The sending allowance characteristic of tested optical fiber can be directly reacted in on-line testing, high to the fault discovery probability of this respect, is specially adapted to the monitoring to important fiber segment in the situation of cable resource anxiety.Therefore, preferred, in order to fine monitoring, be that main, on-line monitoring is auxiliary principle, according to the actual service condition of optical cable user, adopt at fine, standby fibre, luminous power or by the application mode of these several test mixing.When empty fine less (being less than 4 cores) of this optical cable or this sky fibre are during in stand-by state, should consider to be arranged in line monitoring mode and carry out.In Practical Project, adopt on earth thatly, have following several mode can be for reference: if the empty fine number of a. optical cable is many, to adopt the mode of standby fibre+optical power monitoring; If b. the empty fine number of user is nervous, adopt the mode at fibre+optical power monitoring as far as possible; C. for the taxi optical user that may develop, suggestion adopts the mode at fibre+optical power monitoring at the very start.
System is supported local test and remote testing: in the monitoring main frame of monitoring station, carry out data configuration, local test and information display function, be convenient to user and when construction debugging or emergency, monitored optical fiber tested; Also can test by portable computer remote entry system.
Four kinds of method of testings specifically can be provided: 1) routine test, the transmission quality of long-term follow lightguide cable link, can find the problems such as optical fiber is deteriorated in time; 2) call the roll and test, according to interim, need to send instruction, realize specifying the test of fibre circuit; 3) trouble alarm test, monitoring main frame, according to the warning information from light power monitoring measuring unit, is tested relevant optical cable through the storehouse table that inquiry is built-in; 4) simulation alarm test, arranges alarm-monitor module in monitoring main frame, and reliability service is carried out to simplation validation test.These four kinds of method of testings can be combined, for line upkeep provides strong support.
System is supported data typing and the modification of various ways according to user right: user can manually complete the information such as the title, device port of input, configuration, modification tested optical fiber, optical cable, and set up tested luminous power port or optical switch port and optical line by corresponding relation.Also can to third party's optical fiber monitoring device, provide required related data by data-interface.Data query and report form statistics function are also provided, and according to the original condition arranging of system, (as routine test, have alarm generation, real-time inspection etc.) generates automatically, shows corresponding organize content, by information and disposition, result storage.
On the basis of the network data of having set up and resource distribution, system of the present invention can provide following management function: to the district management of fiber optic network, office institute manage, pipeline (boundary mark) management, calculator room equipment management, optical cable (fibre core) network management, optical routing are managed, network topology management, convenient resource distribution and the service condition of understanding optical fiber in whole communication network, the distribution situation of monitoring point etc.And, can be based on GIS-Geographic Information System (GIS) technology, draw the topological diagram of every resource of whole communication network, the distance at the localization of faults and tested optical cable top not only, the more important thing is and determine and the immediate nodename in fault point, thereby help attendant to locate rapidly abort situation.
System of the present invention can be preferential, receive in real time and process alarm data: when the LMC of Surveillance center or PMC receive after test data file, according to the OTDR curve data in this fault route and the keeping records in data and engineering maintenance information, carry out obstacle analysis, automatically calculate the geographical position of fault point and with front, the relative distance of " terrestrial reference " afterwards, the mode of setting according to preliminary election is sent warning information and obstacle advice note, automatically record and display alarm generation time, obstacle handling time, checkout time, alarm grade, the information such as alarm source and attendant.When operator on duty carries out acknowledged alarm, alarm clearance operation, on printer, real time print goes out the information such as alarm passage, event time, confirmation people.Color on fiber topology figure changes.Alarm generation, acknowledged alarm, alarm clearance data all can be saved in alarm history database automatically.(when significant alarm is not confirmed) at the appointed time, system can, by means such as dedicated system terminal or SMSs on the basis of early warning analysis, be notified relevant administrative staff automatically.
In addition, system of the present invention is reserved with its detection management function of the convenient expansion of interface of hardware and software.For example that expansion DTS distributed temperature detects analysis: in composite rope, carry out temperature precise monitoring, breakdown diagnosis, to abnormal alarm in cable trough, to ampacity dynamic analysis, fault pre-alarming, alarm and location.For example that expansion BOTDR comprehensively analyzes: expand monitoring range, be applicable to general single mode fiber, by Brillouin principle, optical fiber minor variations analyzed, can carry out correlation analysis to temperature and stress, the variation tendency of reflection composite rope, predicts and forecasts damage.For example again the line fault location of XPON technology: for lightguide cable link and optical passive component, non-interrupting service monitoring is carried out analysis expert with maintenance system, quick diagnosis and fault location, etc.
In sum, cable resource of the present invention is concentrated monitoring administrating system, the system architecture that adds one deck monitoring operating platform based on secondary monitoring management platform, by provincial, and municipal level PMC and local level LMC, regulated and controled, a plurality of monitoring station MS carry out, for provide the monitoring of the various ways such as OTDR test, luminous power test and interlock test thereof with optical fiber or standby fibre in communication network.System also provides abundant system management function, especially can according to system configuration parameter, draw the resource topology figure of whole network, the fast accurate location while utilizing GIS technology to help safeguard and look into barrier.Therefore, system of the present invention can effectively reduce manpower financial capacity's expenditure of maintenance management, effectively reduces the time of failure diagnosis and processing, thereby guarantees the operation that whole network security is stable.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. cable resource is concentrated a monitoring administrating system, it is characterized in that, described system has the management monitoring of structures of multilevel hierarchy, comprises at least Two monitor levels center that manages control, and some monitoring stations (MS30) of carrying out fiber optic network monitoring;
Following several Surveillance center of subordinate (LMC20) that connected of each higher level Surveillance center (PMC10); Described higher level Surveillance center (PMC10) is to Surveillance center of subordinate (LMC20) sending controling instruction, and superior Surveillance center of Surveillance center of described subordinate (LMC20) (PMC10) returns to monitoring information;
Following several monitoring stations (MS30) that connected of Surveillance center (LMC20) of each next stage; Each monitoring station (MS30) is provided with several monitoring modulars (40); Each monitoring modular (40) is connected with some optical routings (50);
Described monitoring modular (40), according to the control command of Surveillance center described in any one-level, is monitored some the optical fiber (60) of serial connection in described optical routing (50), and is returned to monitoring information to Surveillance center.
2. cable resource is concentrated monitoring administrating system as claimed in claim 1, it is characterized in that,
Surveillance center described in every one-level, comprises hub (HUB12), and the monitoring management terminal (11) being attached thereto respectively and data server (13); Described monitoring management terminal (11) is also connected with data sheet printer (16);
Also comprise front end processor (14) and router (15), be also connected with described hub (HUB12) respectively; According to the control command of described front end processor (14), via described router (15) Jiang Gaiji Surveillance center, be connected and communicate with other Surveillance center or monitoring station (MS30).
3. cable resource is concentrated monitoring administrating system as claimed in claim 1 or 2, it is characterized in that,
(MS30) includes in monitoring station described in each:
Monitoring main frame (70), it is provided with OTDR device (71);
Program control Multichannel photoswitch unit (72), it is connected with the OTDR device (71) of described monitoring main frame (70) by OTDR test access, also by data/control bus, is connected with described monitoring main frame (70); Described program control Multichannel photoswitch unit (72) is provided with a plurality of optical switch ports;
The monitoring modular (40) of described monitoring station (MS30) comprises OTDR test module;
In described OTDR test module, by wherein several optical switch ports of described program control Multichannel photoswitch unit (72), with the tested corresponding connection of some optical routings (50); In every optical routing (50), comprise some sections of optical fiber (60), between adjacent two sections of optical fiber (60), by jumping fiber (63), be connected in series.
4. cable resource is concentrated monitoring administrating system as claimed in claim 3, it is characterized in that,
Monitoring station described in each (MS30) also comprises multichannel light power monitoring measuring unit (73), and it is connected with described monitoring main frame (70) by data/control bus; Described multichannel light power monitoring measuring unit (73) is provided with a plurality of luminous power ports, is connected with tested optical routing (50);
The monitoring modular (40) of described monitoring station (MS30) also comprises Optical Power Monitor Module, and described Optical Power Monitor Module further comprises corresponding monitoring at the submodule with optical fiber (61) and standby fine (62):
Monitoring is described in the submodule with optical fiber (61), further comprise the coupler (78) being serially connected in tested optical fiber section, it is divided into two-way by the light signal of carrying via exterior light terminal transmitting terminal (76) in this section of optical fiber (61), wherein a road light signal is delivered to the receiving terminal (77) of exterior light terminal, and another road light signal is transported to described multichannel light power monitoring measuring unit (73);
Monitor in the submodule of described standby fine (62), further comprise multichannel stabilized light source (75), it is connected with tested one end for fine (62), and provides a small amount of laser signal for it; The other end of described standby fine (62) is connected to described multichannel light power monitoring measuring unit (73).
5. cable resource is concentrated monitoring administrating system as claimed in claim 4, it is characterized in that,
The monitoring modular (40) of described monitoring station (MS30) also comprises the standby fine monitoring modular of some standby fine (62) being tested in conjunction with OTDR test and optical power monitoring;
In described standby fine monitoring modular, wherein first tested standby fine (62A) one end, by a wavelength division multiplexer (74), is connected with a multichannel stabilized light source (75) and described program control Multichannel photoswitch unit (72) respectively; The other end of described first standby fine (62A) is connected to described multichannel light power monitoring measuring unit (73) by a filter (79), thereby this first standby fine (62A) carried out to the interlock test of single standby fiber optical power and OTDR.
6. cable resource is concentrated monitoring administrating system as claimed in claim 5, it is characterized in that,
In described standby fine monitoring modular, wherein second tested standby fine (62B) is connected to described program control Multichannel photoswitch unit (72), carries out separately OTDR test;
In described standby fine monitoring modular, another the 3rd tested standby fine (62C) one end is connected to described multichannel stabilized light source (75), and the other end is connected to described multichannel light power monitoring measuring unit (73), carries out separately luminous power test;
Corresponding in described program control Multichannel photoswitch unit (72) and multichannel light power monitoring measuring unit (73) upper, connect the described second standby fine and the 3rd standby fine (62B, 62C) simultaneously and carry out two standby fine interlocks and test.
7. cable resource is concentrated monitoring administrating system as claimed in claim 4, it is characterized in that,
The monitoring modular (40) of described monitoring station (MS30) also comprises in conjunction with OTDR test with optical power monitoring some in the on-line monitoring module of testing with optical fiber (61);
In described on-line monitoring module, described program control Multichannel photoswitch unit (72) is connected to same wavelength division multiplexer (74) with the transmitting terminal (76) of exterior light terminal, and be connected to wherein one tested first with optical fiber (61D) one end by this wavelength division multiplexer (74), described first the other end with optical fiber (61D) by one with it corresponding filter (79) be connected to the receiving terminal (77) of exterior light terminal, to described first, with optical fiber (61D), carrying out separately OTDR test.
8. cable resource is concentrated monitoring administrating system as claimed in claim 7, it is characterized in that,
In described on-line monitoring module, wherein one tested second in the one end with optical fiber (61E) by one with it corresponding filter (79) connect the transmitting terminal (76) of exterior light terminal, the other end by one with it the wavelength division multiplexer (74) of correspondence be connected to first coupler (78) and described program control Multichannel photoswitch unit (72) simultaneously;
Described the first coupler (78) is assigned as two-way by light signal, and receiving terminal (77) and described multichannel light power monitoring measuring unit (73) that correspondence is transported to exterior light terminal, carrying out separately luminous power test to described second with optical fiber (61E).
9. cable resource is concentrated monitoring administrating system as claimed in claim 8, it is characterized in that,
In described on-line monitoring module, described program control Multichannel photoswitch unit (72) is connected to a first wave division multiplexer (741) with the transmitting terminal (761) of outside first optical transmitter and receiver simultaneously, and being connected to wherein one the tested the 3rd with optical fiber (61F) one end by described first wave division multiplexer (741), this article the 3rd is connected to the receiving terminal (771) of outside the first optical transmitter and receiver by a Second Wave division multiplexer (742) at the other end with optical fiber (61F);
Simultaneously, the transmitting terminal (762) of outside second optical transmitter and receiver is connected to another the tested the 4th in use optical fiber (61G) one end by the 3rd wavelength division multiplexer (743), this article the 4th passes through filter (79) connection second coupler (78) for correspondence with it at the other end with optical fiber (61G), described the second coupler (78) is distributed into two-way by light signal, and corresponding receiving terminal (772) and the described multichannel light power monitoring measuring unit (73) that flows to outside the second optical transmitter and receiver;
And, also corresponding connection between described Second Wave division multiplexer (742) and described the 3rd wavelength division multiplexer (743), thus form the 3rd, the 4th in the multistage serial connection with optical fiber, carry out the luminous power of multistage serial connection and the interlock of OTDR test.
10. cable resource is concentrated monitoring administrating system as claimed in claim 8, it is characterized in that,
In described on-line monitoring module, the transmitting terminal (761) of described program control Multichannel photoswitch unit (72), the first optical transmitter and receiver, multichannel stabilized light source (75), be connected to the one or three wavelength division multiplexer (745) simultaneously, and being connected to wherein one the tested the 5th with optical fiber (61H) one end by described the one or three wavelength division multiplexer (745), this article the 5th is connected to the receiving terminal (771) of outside the first optical transmitter and receiver by the two or three wavelength division multiplexer (746) at the other end with optical fiber (61H);
Simultaneously, the transmitting terminal (762) of outside the second optical transmitter and receiver is connected to another the tested the 6th in use optical fiber (61I) one end by the three or three wavelength division multiplexer (747), and this article the 6th distributed to light signal by the four or three wavelength division multiplexer (748) receiving terminal (772) and the described multichannel light power monitoring measuring unit (73) of outside the second optical transmitter and receiver at the other end with optical fiber (61I); And, the corresponding connection of residue two road ports of described the two or three wavelength division multiplexer (746), the three or three wavelength division multiplexer (747), thereby form the 5th, the 6th in the multistage serial connection with optical fiber, and by using described stabilized light source (75) to carry out the luminous power of multistage serial connection and the interlock of OTDR test to it.
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