CN102523037A - 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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Publication number
CN102523037A
CN102523037A CN2011103760864A CN201110376086A CN102523037A CN 102523037 A CN102523037 A CN 102523037A CN 2011103760864 A CN2011103760864 A CN 2011103760864A CN 201110376086 A CN201110376086 A CN 201110376086A CN 102523037 A CN102523037 A CN 102523037A
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China
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monitoring
optical
optical fiber
multichannel
test
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CN102523037B (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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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 and management system
Technical field
The present invention be more particularly directed to a kind of cable resource and concentrate monitoring and management 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 of power network exchange and instruction is transmitted; The 2nd, network system periodic traffic work and provide transmission channel convenient for telecom operators; The 3rd, information exchange is carried with the operation index signal in the intelligent grid.
Because optical fiber is physical bodies, itself has the life problems of performance degradation, adds the influence of all kinds of contingencies such as bad weather and external impacts, is easy to generate optical cable damage, outage, influence communication.Therefore, whether can predict cable variation trend effectively, in time judge and handle fiber failure and seemed very important, 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), to search out tested optical cable by the technical staff earlier; Use Optical Time Domain Reflectometer (hereinafter to be referred as OTDR equipment) to test this its again, and then gathered and analyzed by manual work, workload is big; Expenses is very big, but maintenance effects is limited.And, in case communication failure takes place, need to judge from transfer check earlier, again the fault paragraph is found a certain optical cable, arrange the technical staff personnel to use instrument to test, locate afterwards, understand the test and the repairing time of delay fault like this.And, also maybe be because that optical cable is actual lay the time is crooked and in the fine length of dish that hoistway etc. is located to reserve, make accurately inadequately to this failure location, influence repairing speed.In addition, for example the deterioration of optical fiber quality is progressive formation, maybe be to the eye or the single test result all do not see problem, but very big hidden danger has been arranged on the internal structure, so general measure is difficult to find.
On the other hand, optical cable is as a kind of passive transmission medium, and still untapped at present self detection alarm function can only rely on external system that its state condition is monitored and managed.But existing, the fiber cable network resource is carried out the system of maintenance and management, simple resource record system just lacks and the interlock of automatic test equipment, does not more possess the scheduling feature of maintenance.Can find certain route spot fault by existing fibre optic transmission equipment, but can't be quantitatively and the fault location scene, will inevitably incur loss through delay troubleshooting opportunity, cause than large economy and lose; Utilize communication equipment to detect simultaneously and also do not possess forecast function, can't strong support be provided for optical cable planning.
And, traditional maintenance management with written be main, can't be directly in the computer system memory storage, cause various forms, data to be accumulated over a long period and huge, inspection, contrast be very inconvenience all.In addition because to build with using be different unit or departments, have certain difference in the data of collection aspect tested tissue and the examination, stay defective for the optical cable state variation analytical work in later stage and renewal plan formulation.
Therefore, setting up one and improve and fiber optic cable monitor management system independently, strengthen management and guarantee to optical cable, is necessity very in current and following power communication.
Summary of the invention
The purpose of this invention is to provide a kind of cable resource and concentrate monitoring and management system; The system architecture that adds the monitoring station with the two-stage management; Realization is to the multiple functions such as optical power monitoring, test optical fiber (OTDR test), fault warning processing, data query, report form statistics, system configuration, user management and fiber cable network resource management of optical fiber; Thereby can in time find the optical fiber deterioration; And quick and precisely fault location is regional, reduces manpower financial capacity's spending of maintenance management, guarantees the safety and stability of optical fiber power communication.
In order to achieve the above object; Technical scheme of the present invention provides a kind of cable resource and concentrates monitoring and management system; Said system has the management monitoring of structures of multilevel hierarchy, comprises the center of Two monitor levels at least of managing control, and some monitoring stations of carrying out the fiber optic network monitoring;
Each has connected several Surveillance center of subordinate below the higher level Surveillance center; Said higher level Surveillance center is to Surveillance center of subordinate sending controling instruction, and Surveillance center of said subordinate returns monitoring information to higher level Surveillance center;
Several monitoring stations have been connected below the Surveillance center of each next stage; Each monitoring station is provided with several monitoring modulars; Each monitoring modular is connected with some optical routings;
Said monitoring modular is monitored some optical fiber that are connected in series in the said optical routing, and is returned monitoring information to Surveillance center according to the control command of any said Surveillance center of one-level.
The said Surveillance center of each grade comprises hub, and the monitoring management terminal and the data server that are attached thereto respectively; Said monitoring management terminal also is connected with the data sheet printer;
Also comprise front end processor and router, also be connected with said hub respectively; According to the control command of said front end processor, this grade Surveillance center is connected with other Surveillance center or monitoring station and communicates via said router.
Each said monitoring station includes:
The monitoring main frame, it is provided with the OTDR device;
Program control multichannel optical switch element, it is connected with the OTDR device of said monitoring main frame through the OTDR test access, also is connected with said monitoring main frame through data/control bus; Said program control multichannel optical switch element is provided with a plurality of optical switch ports;
The monitoring modular of said monitoring station comprises the OTDR test module;
In the said OTDR test module, with wherein several optical switch ports of said program control multichannel optical switch element, with the tested corresponding connection of some optical routings; Comprise plurality of sections optical fiber in every optical routing, be connected in series through jumping fiber between adjacent two sections optical fiber.
Each said monitoring station also comprises multichannel optical power monitoring unit, and it is connected with said monitoring main frame through data/control bus; Said multichannel optical power monitoring unit is provided with a plurality of luminous power ports, is connected with tested optical routing;
The monitoring modular of said monitoring station also comprises Optical Power Monitor Module, and said Optical Power Monitor Module further comprises corresponding monitoring with optical fiber and the submodule that is equipped with fibre:
Monitor said in submodule with optical fiber; Further comprise the coupler that is serially connected in the tested optical fiber section; It is divided into two-way with the light signal of carrying via exterior light terminal transmitting terminal in this section optical fiber; Wherein one road light signal is delivered to the receiving terminal of exterior light terminal, and another road light signal is transported to said multichannel optical power monitoring unit;
Monitor said being equipped with in the fine submodule, further comprise the multichannel stabilized light source, itself and tested fine connection that be equipped with, and a spot of laser signal is provided for it; The said other end that is equipped with fibre is connected to said multichannel optical power monitoring unit.
The monitoring modular of said monitoring station also comprise combine OTDR test and optical power monitoring to some be equipped with fine test be equipped with fine monitoring modular;
A kind of enforcement in the fine monitoring modular of being equipped with of structure, wherein the tested fine end that is equipped with passes through a wavelength division multiplexer, is connected with a multichannel stabilized light source and said program control multichannel optical switch element respectively; The said fine fully other end is connected to said multichannel optical power monitoring unit through a filter, thereby this is equipped with the fine interlock test of carrying out single fiber optical power fully and OTDR.
Being equipped with in the fine monitoring modular of another kind of enforcement structure,, wherein the tested fibre that is equipped with is connected to said program control multichannel optical switch element, comes to carry out separately the OTDR test;
Said being equipped with in the fine monitoring modular,, the fine end that is equipped with that another is tested is connected to a multichannel stabilized light source, and the other end is connected to said multichannel optical power monitoring unit, comes to carry out separately the luminous power test;
Corresponding on said program control multichannel optical switch element and multichannel optical power monitoring unit, connect said two simultaneously and be equipped with fine two fine interlock tests that are equipped with of carrying out.
The monitoring modular of said monitoring station also comprises and combines OTDR test and optical power monitoring to 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 said program control multichannel optical switch element and exterior light terminal is connected to same wavelength division multiplexer; And through this wavelength division multiplexer be connected to wherein one tested with optical fiber one end; Said being connected to the receiving terminal of exterior light terminal through a filter with the other end of optical fiber, come carrying out the OTDR test separately with optical fiber to said.
In the on-line monitoring module of another kind of enforcement structure; Wherein the tested end with optical fiber passes through the transmitting terminal that a filter connects the exterior light terminal, and the other end is connected to a coupler and said program control multichannel optical switch element simultaneously through a wavelength division multiplexer;
Said coupler is assigned as two-way with light signal, and correspondence is transported to the receiving terminal and the said multichannel optical power monitoring unit of exterior light terminal, comes carrying out the luminous power test separately with optical fiber to said.
Also have in a kind of on-line monitoring module of implementing structure; The transmitting terminal of first optical transceiver of a said program control multichannel optical switch element and an outside is connected to one first wavelength division multiplexer simultaneously; And through said first wavelength division multiplexer be connected to wherein one tested with optical fiber one end, this is at the receiving terminal that is connected to outside first optical transceiver with the other end of optical fiber through one second wavelength division multiplexer;
Simultaneously; The transmitting terminal of outside one second optical transceiver is connected to through one the 3rd wavelength division multiplexer that another is tested with optical fiber one end; This connects a coupler at the other end with optical fiber through a filter; Said coupler is distributed into two-way with light signal, and corresponding receiving terminal and the said multichannel optical power monitoring unit that flows to outside second optical transceiver;
And, also corresponding connection the between said second wavelength division multiplexer and said the 3rd wavelength division multiplexer, thus form these two in multistage serial connection with optical fiber, carry out the luminous power of multistage serial connection and the interlock test of OTDR.
Perhaps; In the on-line monitoring module of other structures; The transmitting terminal of said program control multichannel optical switch element, first optical transceiver, a multichannel stabilized light source; Be connected to the one or three wavelength division multiplexer simultaneously, and through said the one or three wavelength division multiplexer be connected to wherein one tested with optical fiber one end, this is at the receiving terminal that is connected to outside first optical transceiver with the other end of optical fiber through the two or three wavelength division multiplexer;
Simultaneously; The transmitting terminal of outside second optical transceiver is connected to through the three or three wavelength division multiplexer that another is tested with optical fiber one end, and this is in receiving terminal and the said multichannel optical power monitoring unit of through the four or three wavelength division multiplexer light signal being distributed to outside second optical transceiver with the other end of optical fiber; And; Residue two road ports of said the two or three wavelength division multiplexer, the three or three wavelength division multiplexer are corresponding to be connected; Thereby form these two, and through using said stabilized light source that it is carried out the luminous power of multistage serial connection and the interlock test of OTDR in multistage serial connection with optical fiber.
Compared with prior art; Cable resource according to the invention is concentrated monitoring and management system; Its advantage is: system according to the 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 regulation and control, a plurality of monitoring station MS carry out, in communication network with optical fiber or be equipped with the fine monitoring that multiple modes such as OTDR test, luminous power test and interlock test thereof are provided.System also provides abundant system management function, especially can draw the resource topology figure of whole network according to system configuration parameter, utilizes the help of GIS technology to safeguard and look into precisely locating fast when hindering.Therefore, system according to the 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.
Description of drawings
Fig. 1 is the sketch map that cable resource according to the invention is concentrated the multilevel hierarchy structure of monitoring and management system, wherein shows a power system capacity configuring condition under the preferred embodiment;
Fig. 2 is the equipment disposition and the syndeton sketch map of Surveillance center at different levels in the system according to the invention;
Fig. 3 is overall equipment disposition and a syndeton sketch map in the monitoring station in the system according to the invention;
Fig. 4 is in the monitoring station shown in Figure 3, the equipment disposition of OTDR test module and syndeton sketch map;
Fig. 5 is in the monitoring station shown in Figure 3, the group equipment configuration and the syndeton sketch map of Optical Power Monitor Module;
Fig. 6 is in the monitoring station shown in Figure 3, is equipped with group equipment configuration and the syndeton sketch map of fine monitoring modular based on OTDR and luminous power joint test;
Fig. 7 is in the monitoring station shown in Figure 3, and the on-line monitoring module is based on the group equipment configuration and the syndeton sketch map of OTDR and luminous power joint test;
Fig. 8 is in the monitoring station shown in Figure 3, and the on-line monitoring module is based on the another kind of equipment disposition and the syndeton sketch map of OTDR and luminous power joint test.
Embodiment
Below in conjunction with description of drawings embodiment of the present invention.
It is the management platform of a multilevel hierarchy that cable resource according to the invention is concentrated monitoring and management system.In the embodiment shown in fig. 1, comprise secondary monitoring management platform, the first order is a provincial, and municipal level Surveillance center 10 (hereinafter to be referred as PMC), and the second level is several local level Surveillance center 20 (hereinafter to be referred as LMC) that are attached thereto; Be one deck monitoring operating platform framework below the monitoring management platform, comprise several monitoring stations MS30 that is connected after each LMC20.
Between Two monitor levels center P MC and the LMC, between the LMC of local level Surveillance center and the monitoring station MS30, can pass through cable networks such as DDN, DCN, TCP/IP and connect, also can realize conversation via wireless networks such as GPRS, CDMA, PSTN.Communicating by letter between monitoring station MS and the LMC of local level Surveillance center adopted the active and standby communication mode of use of foreign peoples's media, and the 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 the network by monitoring station MS, and the situation of monitoring and maintenance is informed 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 given 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, the remote monitoring terminal (not shown) can be set, connect, the convenient situation of obtaining each section optical fiber at any time with monitoring management points at different levels.
As shown in Figure 2, the equipment in provincial, and municipal level PMC or local level LMC Surveillance center 10 and 20 basically roughly the same comprises monitoring management terminal 11, and it also is connected with data server 13 through hub HUB12 except being connected with data sheet printer 16; Also have front end processor 14, router one 5, also be connected with hub HUB12 respectively, be used to control communicating by letter between PMC and the LMC.The equipment of the LMC of local level Surveillance center can adopt the active and standby mode of using with two-node cluster hot backup to dispose, and the assurance system can not shut down operation.
Cooperation mainly comprises the monitoring main frame 70 of controlling usefulness referring to Fig. 1, shown in Figure 3 among each monitoring station MS, and the program control multichannel optical switch element 72 and multichannel optical power monitoring unit 73 that are attached thereto respectively.Wherein, program control multichannel optical switch element 72, multichannel optical power monitoring unit 73 both can be placed on MS this locality, monitoring station and also can be placed on far-end.The employing bus mode is connected between monitoring main frame 70 and local other unit; Be connected with adopting point-to-point mode between the long-range unit module, for example be with digital special line, simulation special line or adopt light MODEM--directly to utilize mode such as empty Optical Fiber Transmission to realize communicating by letter.
Also comprise some coupler 78, wavelength division multiplexer 74, filter 79 and stabilized light source 75 among the MS of monitoring station; Said program control multichannel optical switch element 72 or multichannel optical power monitoring unit 73 through the corresponding port that is provided with separately, directly connect optical fiber 60, perhaps through above-mentioned optical fiber 60 such as connection such as coupler 78 equipment such as grade.Equipment such as said optical switch element 72, optical power monitoring unit 73 and coupler 78 cooperatively interact and constitute several monitoring modulars 40; For example be test optical fiber module (also being called the OTDR test module), Optical Power Monitor Module, be equipped with fine monitoring modular, on-line monitoring module or the like; The concrete connection of those monitoring modulars 40 can specifically describe hereinafter.
In preferred embodiment shown in Figure 1, each PMC10 of provincial, and municipal level Surveillance center connects 32 LMC20 of local level Surveillance center at most, and each LMC20 of local level Surveillance center connects 32 monitoring station MS30 at most.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.For the power of test (referring to transmitted power, detection sensitivity and overall attenuation) that makes full use of OTDR does not reduce reliability again; Experience according to telecommunications enforcement; In order to improve the resolution of test curve, advise that the serial connection amount in every optical routing is 8 sections optical fiber 60 to the maximum simultaneously.Therefore, a cable resource of the present invention is concentrated in monitoring and the management system, below a PMC10 of provincial, and municipal level Surveillance center, just can concentrate monitoring and manage 32 * 32 * 16 * 32 * 8=4194304 sections optical fiber 60.
Cooperation is referring to Fig. 3, shown in Figure 4, and Fig. 4 is the test optical fiber module of monitoring station MS according to the 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 optical switch element 72 and monitoring main frame 70 connect through OTDR test access and data/control bus.Program control multichannel optical switch element 72 be provided with a plurality of optical switch port k (for example be 8, k1 ~ k8); Several optical switch ports k wherein is connected with an optical routing 50 separately it is monitored; Comprise plurality of sections optical fiber 60 in every optical routing 50, be connected in series through jumping fiber 63 between adjacent two sections optical fiber.
The working method of said program control multichannel optical switch element 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 optical switch element 72 and wherein optical routing 50 connections, thereby this optical routing 50 is monitored.Monitor the ability of route and leave certain development leeway in order to make full use of monitoring station MS, suggestion arranges optical routing 50 numbers of monitoring to be not more than 50 on each monitoring station MS, is 32 in the above-mentioned preferred embodiment.
Described test optical fiber (also claiming the OTDR test) is one of main means of judging optical fiber quality, fault occurrence cause, fault location.OTDR device 71 by monitoring main frame 70 is launched light pulses to optical fiber 60, and utilizes 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 be because the character of optical fiber itself, connector, junction point, crooked or the like or scattering that other similar incidents produce and reflect after; Calculate the time of pulse propagation by precision clock; Form the test curve of changes in amplitude on the time domain; Because the distance of light pulse propagation time and its process is a functional relation, can convert the time into distance through function calculation, thereby the internal view of an optical fiber link is provided.OTDR curve chart according to drawing is monitored, and ordinate is an optical power value, and unit is db; Abscissa is a distance, and unit is m.In the described test optical fiber, OTDR device 71 is not having under other situation that trigger sources, will be according to the control of monitoring main frame 70, all tested optical fiber are carried out the repeating query sweep test according to predetermined test period, and find optical fiber 60 problems.
Cooperation is referring to Fig. 3, shown in Figure 5, and Fig. 5 is the Optical Power Monitor Module of said monitoring station MS.Luminous power test is monitoring in real time with optical fiber 61 or be added in the optical power intensity variation that is equipped with receiving terminal in fine 62 in advance.Optical Power Monitor Module has functions such as luminous power data acquisition, data analysis, alarming processing, storage.Four kinds of alarm grades have been designed, through the different alarm sounds and the textual representation of different colours; When the luminous power data that collect were crossed certain alarming threshold, Optical Power Monitor Module was sent switch fault report to monitoring center, and initiatively started preset test program, and the fault point is positioned.
The syndeton that said Optical Power Monitor Module is concrete is following: monitoring main frame 70 is connected with multichannel optical power monitoring unit 73 through data/control bus.Multichannel optical power monitoring unit 73 be provided with a plurality of luminous power port g (for example be 8, g1 ~ g8).For in test with optical fiber 61; It is a serial connection coupler 78 (or optical splitter) in tested fiber segment; The little light Signal Separation of carrying via optical transceiver transmitting terminal 76 in this section optical fiber 61 is come out; For example be the receiving terminal 77 that feasible wherein 97% light signal is delivered to optical transceiver, the light signal of residue 3% is transported to the luminous power port g1 of said multichannel optical power monitoring unit 73.Test for being equipped with fine 62 also is provided with a multichannel stabilized light source 75, is connected to it with tested fibre 62 fully a spot of laser signal is provided, and fine 62 the other end is connected to luminous power port g2 fully.
Preferably; Be that the OTDR test is used in combination with optical power monitoring, system all carries out continual scanning to all optical power monitoring points, is significantly smaller than the cycle of OTDR routine test; Therefore; Luminous power is in case the variation of crossing thresholding, and system is immediately with alarm report and start OTDR and carry out fault test, thus can shorten greatly fault on call time.Optical power monitoring has been arranged, just can prolong OTDR test period, avoided the excessive frequent starting of OTDR test, prolonged the useful life of OTDR device.
Cooperation is referring to Fig. 3, shown in Figure 6, Fig. 6 be combine among the MS of monitoring station OTDR test and optical power monitoring to be equipped with fine 62 test be equipped with fine monitoring modular.Owing to each the root optical fiber in one section optical cable generally has identical performance characteristics; Also can show identical fault characteristic under most of failure conditions; Therefore, can be through the test of one or more subsequent use optical fiber in one section optical cable, just can the side reflect the fault characteristic of whole section tested optical cable.Concrete, make monitoring main frame 70 and program control multichannel optical switch element 72 and multichannel optical power monitoring unit 73 according to the corresponding connection of above-described mode.
Wherein, in first kind of wiring construction, an end that is equipped with fine 62A is connected with multichannel stabilized light source 75 and program control multichannel optical switch element 72 respectively through a wavelength division multiplexer 74; The other end that is equipped with fine 62A is connected to multichannel optical power monitoring unit 73 through a filter 79, and so connection can be carried out single interlock test that is equipped with fiber optical power and OTDR to being equipped with fine 62A.
In second kind of wiring construction, the fine 62B that is equipped with in optical routing is connected to program control multichannel optical switch element 72, and some that so connect are equipped with the repeating query sweep test that fine 62B can carry out OTDR.
In the third wiring construction, be equipped with fine 62C one end and connect multichannel stabilized light source 75, the other end connects multichannel optical power monitoring unit 73, can carry out the luminous power test separately; Or be equipped with second kind of wiring construction simultaneously, carry out the two interlock tests that are equipped with fibre of B-C.Those are equipped with the different port that fibre 62 uses on multichannel stabilized light source 75, program control multichannel optical switch element 72 and the multichannel optical power monitoring unit 73.
Cooperation is referring to Fig. 3, Fig. 7, shown in Figure 8, and Fig. 7, Fig. 8 combine OTDR test and the on-line monitoring module of optical power monitoring to testing with optical fiber 61 among the MS of monitoring station.Monitoring main frame 70 and program control multichannel optical switch element 72 and multichannel optical power monitoring unit 73 are also with the corresponding connection of above-described mode.
As shown in Figure 7; In first kind of wiring construction; Program control multichannel optical switch element 72 is connected to same wavelength division multiplexer 74 with the transmitting terminal 76 of optical transceiver; And being connected a end with optical fiber 61D through this wavelength division multiplexer 74, the optical fiber 61D other end is connected to the receiving terminal 77 of optical transceiver through filter 79.Some that so connect in the repeating query sweep test that can carry out OTDR with optical fiber 61.
In second kind of wiring construction, optical fiber 61E one end is through the transmitting terminal 76 of filter 79 connection optical transceivers, and the other end connects coupler 78 and program control multichannel optical switch element 72 simultaneously through wavelength division multiplexer 74; Coupler 78 reallocation light signals are to the receiving terminal 77 and multichannel optical power monitoring unit 73 of optical transceiver.So can carry out the luminous power test separately to optical fiber 61E.
In the third wiring construction; The transmitting terminal 761 of the program control multichannel optical switch element 72 and first optical transceiver is connected to first wavelength division multiplexer 741; And be connected through this wavelength division multiplexer 741 and use optical fiber 61F, the optical fiber 61F other end is connected to the receiving terminal 771 of first optical transceiver through second wavelength division multiplexer 742.Simultaneously; The transmitting terminal 762 of second optical transceiver is connected to optical fiber 61G one end through the 3rd wavelength division multiplexer 743; The optical fiber 61G other end connects coupler 78 through filter 79, and the receiving terminal 772 and multichannel optical power monitoring unit 73 of second optical transceiver distributed to light signal by coupler 78.And, also corresponding connection the between second wavelength division multiplexer 742 and the 3rd wavelength division multiplexer 743, thus be implemented in multistage serial connection with optical fiber F and G, be convenient to carry out the luminous power of multistage serial connection and the interlock test of OTDR.
As shown in Figure 8; In the 4th kind of wiring construction; Program control multichannel optical switch element 72, the transmitting terminal 761 of first optical transceiver, multichannel stabilized light source 75 are connected to the one or three wavelength division multiplexer 745; And be connected through said the one or three wavelength division multiplexer 745 and use optical fiber 61H, the optical fiber 61H other end is connected to the receiving terminal 771 of first optical transceiver through the two or three wavelength division multiplexer 746.Simultaneously; The transmitting terminal 762 of second optical transceiver is connected to optical fiber 61I one end through the three or three wavelength division multiplexer 747, and the optical fiber 61I other end is distributed to light signal through the four or three wavelength division multiplexer 748 (or wavelength division multiplexer 74) receiving terminal 772 and multichannel optical power monitoring unit 73 of second optical transceiver.And residue two road ports of second, third three wavelength division multiplexer 746,747 are corresponding to be connected.With this syndeton, can use external stabilization light source 75, carry out the luminous power and the OTDR interlock test of multistage serial connection.
Because it is low to be equipped with fine testing cost, need seldom or not to insert equipment (coupler etc.), engineering construction does not influence proper communication, and the optical fiber serial connection when carrying out the multistage test in the tested optical routing is convenient, is specially adapted to the monitoring under the vacant optical fiber situation.The sending allowance characteristic of tested optical fiber can be directly reacted in on-line testing, and is high to the fault discovery probability of this respect, is specially adapted under the nervous situation of cable resource the monitoring to important fiber segment.Therefore, preferred, be that main, on-line monitoring is the principle of assisting in order to fine monitoring, according to the actual operating position of optical cable user, be employed in fibre, be equipped with fibre, luminous power or the application mode of these several kinds of test mixing.When this optical cable empty fine less (being less than 4 cores) or when should the sky fibre being in stand-by state, considered arranges online monitoring mode to carry out.Adopt the sort ofly in the actual engineering on earth, have the following several kinds of modes can be for reference:, then to adopt the mode that is equipped with fibre+optical power monitoring if the empty fine number of a. optical cable is many; If b. the empty fine number of user is nervous, then be employed in the mode of fibre+optical power monitoring as far as possible; C. for the taxi optical user that possibly develop, then suggestion is employed in the mode of fibre+optical power monitoring at the very start.
System supports 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 the user and when construction debugging or emergency, monitored optical fiber tested; Also can test through the 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 in time be found problems such as optical fiber deterioration; 2) roll-call test is sent instruction according to interim needs, realizes specifying the test of fibre circuit; 3) trouble alarm test, monitoring main frame are tested relevant optical cable through the storehouse table that inquiry is built-in according to the warning information from the optical power monitoring unit; 4) simulation alarm test is provided with the alarm-monitor module in the monitoring main frame, and reliability service is carried out the simplation validation test.Can combine these four kinds of method of testings, for line upkeep provides strong support.
System supports the data typing and the modification of multiple mode according to user right: the user can artificial accomplish information such as input, configuration, the title of revising tested optical fiber, optical cable, device port, and set up tested luminous power port or optical switch port and optical line by corresponding relation.Also can to third party's fiber-optic monitoring device required related data be provided through data-interface.Data query and report form statistics function also are provided,, show corresponding organize content, with information and disposition, result storage according to the original condition that is provided with of system (like routine test, alarm generations, real-time inspection etc. are arranged) generation automatically.
On the basis of network data of having set up and resource distribution; System according to the invention can provide following management function: to the district management of fiber optic network, office 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 operating position of understanding optical fiber in the 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 each item resource of whole communication network; Not only the distance at the localization of faults and tested optical cable top the more important thing is and confirmed and the immediate nodename in fault point, thereby helps the rapid fault location of attendant position.
System according to the invention can receive and handle alarm data preferentially, in real time: after the LMC of Surveillance center or PMC receive test data file; According to the OTDR curve data on this fault route and keeping records in the data and engineering maintenance information; Carry out the obstacle analysis; Automatically calculate the fault point the geographical position and with the relative distance of forward and backward " terrestrial reference "; Mode according to preliminary election is set is sent warning information and obstacle advice note, automatically information such as record and display alarm generation time, obstacle handling time, checkout time, alarm grade, alarm source and attendant.When the operator on duty carried out acknowledged alarm, alarm clearance operation, real time print went out to alarm information such as passage, event time, affirmation people on printer.Color on the fiber topology figure changes.Alarm generation, acknowledged alarm, alarm clearance data all can be saved in the alarm history database automatically.(when significant alarm does not obtain confirming) at the appointed time, system can notify relevant administrative staff automatically through means such as dedicated system terminal or SMSs on the basis of early warning analysis.
In addition, system according to the invention is reserved with its detection management function of the convenient expansion of interface of hardware and software.For example be the check and analysis of expansion DTS distributed temperature: in composite rope, carry out temperature precise monitoring, breakdown diagnosis, to abnormal alarm in the cable trough, to the ampacity dynamic analysis, fault pre-alarming, alarm and location.For example be expansion BOTDR analysis-by-synthesis: expand monitoring range; Be applicable to general single mode fiber, the optical fiber minor variations analyzed, can carry out correlation analysis temperature and stress through Brillouin's principle; The variation tendency of reflection composite rope is predicted and is forecast damage.For example be again the line fault location of XPON technology: to lightguide cable link and optical passive component, the non-interrupting service monitoring is carried out analysis expert with maintenance system, quick diagnosis and fault location, or the like.
In sum; Cable resource according to the invention is concentrated monitoring and management 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 regulation and control, a plurality of monitoring station MS carry out, in communication network with optical fiber or be equipped with the fine monitoring that multiple modes such as OTDR test, luminous power test and interlock test thereof are provided.System also provides abundant system management function, especially can draw the resource topology figure of whole network according to system configuration parameter, utilizes the help of GIS technology to safeguard and look into precisely locating fast when hindering.Therefore, system according to the 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 through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.

Claims (10)

1. a cable resource is concentrated monitoring and management system, it is characterized in that said system has the management monitoring of structures of multilevel hierarchy, comprises the center of Two monitor levels at least of managing control, and some monitoring stations (MS30) of carrying out the fiber optic network monitoring;
Each has connected several Surveillance center of subordinate (LMC20) below the higher level Surveillance center (PMC10); Said higher level Surveillance center (PMC10) is to Surveillance center of subordinate (LMC20) sending controling instruction, and Surveillance center of said subordinate (LMC20) returns monitoring information to higher level Surveillance center (PMC10);
Several monitoring stations (MS30) have been connected below the 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);
Said monitoring modular (40) is monitored some the optical fiber (60) of serial connection in the said optical routing (50), and is returned monitoring information to Surveillance center according to the control command of any said Surveillance center of one-level.
2. cable resource is concentrated monitoring and management system according to claim 1, it is characterized in that,
The said Surveillance center of each grade comprises hub (HUB12), and the monitoring management terminal (11) and the data server (13) that are attached thereto respectively; Said monitoring management terminal (11) also is connected with data sheet printer (16);
Also comprise front end processor (14) and router (15), also be connected with said hub (HUB12) respectively; According to the control command of said front end processor (14), this grade Surveillance center is connected with other Surveillance center or monitoring station (MS30) and communicates via said router (15).
3. cable resource is concentrated monitoring and management system according to claim 1 or claim 2, it is characterized in that,
Each said monitoring station (MS30) includes:
Monitoring main frame (70), it is provided with OTDR device (71);
Program control multichannel optical switch element (72), it is connected with the OTDR device (71) of said monitoring main frame (70) through the OTDR test access, also is connected with said monitoring main frame (70) through data/control bus; Said program control multichannel optical switch element (72) is provided with a plurality of optical switch ports;
The monitoring modular (40) of said monitoring station (MS30) comprises the OTDR test module;
In the said OTDR test module, with wherein several optical switch ports of said program control multichannel optical switch element (72), with the tested corresponding connection of some optical routings (50); Comprise plurality of sections optical fiber (60) in every optical routing (50), be connected in series through jumping fiber (63) between adjacent two sections optical fiber (60).
4. concentrate monitoring and management system like the said cable resource of claim 3, it is characterized in that,
Each said monitoring station (MS30) also comprises multichannel optical power monitoring unit (73), and it is connected with said monitoring main frame (70) through data/control bus; Said multichannel optical power monitoring unit (73) is provided with a plurality of luminous power ports, is connected with tested optical routing (50);
The monitoring modular (40) of said monitoring station (MS30) also comprises Optical Power Monitor Module, and said Optical Power Monitor Module further comprises corresponding the monitoring at the submodule with optical fiber (61) and fully fine (62):
Monitor said in submodule with optical fiber (61); Further comprise the coupler (78) that is serially connected in the tested optical fiber section; It is divided into two-way with the light signal of carrying via exterior light terminal transmitting terminal (76) in this section optical fiber (61); Wherein one road light signal is delivered to the receiving terminal (77) of exterior light terminal, and another road light signal is transported to said multichannel optical power monitoring unit (73);
Monitor in the submodule of said fully fine (62), further comprise multichannel stabilized light source (75), it is connected with a tested end that is equipped with fine (62), and for it a spot of laser signal is provided; The said other end that is equipped with fine (62) is connected to said multichannel optical power monitoring unit (73).
5. concentrate monitoring and management system like the said cable resource of claim 4, it is characterized in that,
The monitoring modular (40) of said monitoring station (MS30) also comprises and combines OTDR test and optical power monitoring to be equipped with the fine monitoring modular that is equipped with that fine (62) test to some;
Said being equipped with in the fine monitoring modular,, wherein tested fine (62A) end that is equipped with passes through a wavelength division multiplexer (74), is connected with a multichannel stabilized light source (75) and said program control multichannel optical switch element (72) respectively; The said other end that is equipped with fine (62A) is connected to said multichannel optical power monitoring unit (73) through a filter (79), carries out single interlock test that is equipped with fiber optical power and OTDR thereby this is equipped with fine (62A).
6. concentrate monitoring and management system like the said cable resource of claim 5, it is characterized in that,
Said being equipped with in the fine monitoring modular,, wherein tested be equipped with fine (62B) is connected to said program control multichannel optical switch element (72), comes to carry out separately the OTDR test;
Said being equipped with in the fine monitoring modular,, fine (62C) end that is equipped with that another is tested is connected to a multichannel stabilized light source (75), and the other end is connected to said multichannel optical power monitoring unit (73), comes to carry out separately the luminous power test;
Correspondence connects said two simultaneously and is equipped with the interlocks test that fine (62B, 62C) carry out two fibres fully on said program control multichannel optical switch element (72) and multichannel optical power monitoring unit (73).
7. concentrate monitoring and management system like the said cable resource of claim 4, it is characterized in that,
The monitoring modular (40) of said monitoring station (MS30) also comprise combine the OTDR test with optical power monitoring to some in the on-line monitoring module of testing with optical fiber (61);
In the said on-line monitoring module; Said program control multichannel optical switch element (72) is connected to same wavelength division multiplexer (74) with the transmitting terminal (76) of exterior light terminal; And through this wavelength division multiplexer (74) be connected to wherein one tested with optical fiber (61D) end; Said being connected to the receiving terminal (77) of exterior light terminal through a filter (79) with the other end of optical fiber (61D), come carrying out the OTDR test separately with optical fiber (61D) to said.
8. concentrate monitoring and management system like the said cable resource of claim 7, it is characterized in that,
In the said on-line monitoring module; Wherein the tested end with optical fiber (61E) passes through the transmitting terminal (76) that a filter (79) connects the exterior light terminal, and the other end is connected to a coupler (78) and said program control multichannel optical switch element (72) simultaneously through a wavelength division multiplexer (74);
Said coupler (78) is assigned as two-way with light signal, and correspondence is transported to the receiving terminal (77) and the said multichannel optical power monitoring unit (73) of exterior light terminal, comes carrying out the luminous power test separately with optical fiber (61E) to said.
9. concentrate monitoring and management system like the said cable resource of claim 8, it is characterized in that,
In the said on-line monitoring module; Said program control multichannel optical switch element (72) is connected to one first wavelength division multiplexer (741) simultaneously with the transmitting terminal (761) of first optical transceiver of an outside; And through said first wavelength division multiplexer (741) be connected to wherein one tested with optical fiber (61F) end, this is at the receiving terminal (771) that is connected to outside first optical transceiver with the other end of optical fiber (61F) through one second wavelength division multiplexer (742);
Simultaneously; The transmitting terminal (762) of outside one second optical transceiver is connected to through one the 3rd wavelength division multiplexer (743) that another is tested with optical fiber (61G) end; This connects a coupler (78) at the other end with optical fiber (61G) through a filter (79); Said coupler (78) is distributed into two-way with light signal, and corresponding receiving terminal (772) and the said multichannel optical power monitoring unit (73) that flows to outside second optical transceiver;
And, also corresponding connection the between said second wavelength division multiplexer (742) and said the 3rd wavelength division multiplexer (743), thus form these two in multistage serial connection with optical fiber, carry out the luminous power of multistage serial connection and the interlock test of OTDR.
10. concentrate monitoring and management system like the said cable resource of claim 8, it is characterized in that,
In the said on-line monitoring module; The transmitting terminal (761) of said program control multichannel optical switch element (72), first optical transceiver, a multichannel stabilized light source (75); Be connected to the one or three wavelength division multiplexer (745) simultaneously; And through said the one or three wavelength division multiplexer (745) be connected to wherein one tested with optical fiber (61H) end, this is at the receiving terminal (771) that is connected to outside first optical transceiver with the other end of optical fiber (61H) through the two or three wavelength division multiplexer (746);
Simultaneously; The transmitting terminal (762) of outside second optical transceiver is connected to through the three or three wavelength division multiplexer (747) that another is tested with optical fiber (61I) end, and this is in receiving terminal (772) and the said multichannel optical power monitoring unit (73) of through the four or three wavelength division multiplexer (748) light signal being distributed to outside second optical transceiver with the other end of optical fiber (61I); And; Residue two road ports of said the two or three wavelength division multiplexer (746), the three or three wavelength division multiplexer (747) are corresponding to be connected; Thereby form these two, and through using said stabilized light source (75) that it is carried out the luminous power of multistage serial connection and the interlock test of OTDR in multistage serial connection with optical fiber.
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