CN102386974A - PON (passive optical network) network fault detection method and device - Google Patents
PON (passive optical network) network fault detection method and device Download PDFInfo
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- CN102386974A CN102386974A CN201110414895XA CN201110414895A CN102386974A CN 102386974 A CN102386974 A CN 102386974A CN 201110414895X A CN201110414895X A CN 201110414895XA CN 201110414895 A CN201110414895 A CN 201110414895A CN 102386974 A CN102386974 A CN 102386974A
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Abstract
The invention discloses a technical scheme for PON (passive optical network) network fault detection and positioning and relates to a PON technology. The method comprises the following steps: acquiring data of optical modules of OLT (optical line terminal) and ONU (optical network unit) equipment in a PON; and determining a PON network fault by comparing the acquired data of the optical modules with reference values. The method is greatly different from the existing fault detection way, the way does not need to transform a circuit, an external testing device is not required, the cost is low, the method can be applied to the current network, and the positioning is accurate.
Description
Technical field
The present invention relates to PON (Passive Optical Network, passive optical-fiber network) network technology, particularly a kind of PON network fault detecting method and device.
Background technology
Traditional copper cable inserts after fault takes place, and failure location and recovery technique be comparative maturity all, and the PON network is also being greatly developed the construction period, and the technology of obstacle test position fix is all immature.
Have a kind of method in the prior art, but it runs into great number of issues in the PON network application through OTDR (Optical Time Domain Reflectometer, optical time domain reflectometer) test discovery PON network obstacles and obstacle location.Because the topological structure of PON network 1:N, OTDR is when sending out test waves to user side from local side, and the obstacle positioning range only is confined to trunk, can't penetrate the light branch, and reason is that light divides the branch of back many, and noise is many, is unfavorable for declaring barrier and location.In addition, this scheme need be to track remodelling, and guarantees that each user's fiber lengths there are differences, and is high to maintenance requirement, feasible hardly.And the cost of OTDR equipment own is high, inserts the PON network and introduces new fault point again, and this technology is immature, can't use by existing network.
At present, behind the PON network generation obstacle, if ODN is (Optical Distribution Network; Optical distribution network) partial impairment, the personnel of needing repairing are being with OTDR equipment to in-site measurement, particularly arrive user side and initiate test to local side; Confirm the obstacle position, and then repair to barrier point.The obstacle detection locating speed is slow, and efficient is low.
Summary of the invention
Inventor of the present invention finds to have problems in the above-mentioned prior art, and has therefore proposed a kind of new technical scheme at least one problem in the said problem.
An object of the present invention is to provide the technical scheme that a kind of PON of being used for network failure detects.
According to a first aspect of the invention, a kind of PON network fault detecting method is provided, has comprised: obtained OLT and ONU equipment optical module data in the PON network; According to the comparison of optical module data of obtaining and fiducial value to confirm the PON network failure.
Preferably, the optical module data comprise the luminous power data of optical module; The optical module data that said basis is obtained and the comparison of fiducial value are to confirm that the PON network failure comprises: compare to confirm the circuitry obstacle of PON network according to the luminous power data of OLT that obtains and ONU equipment optical module and the luminous power fiducial value of said optical module.
Preferably, the luminous power data comprise: the received optical power of the transmitting optical power of ONU equipment, ONU equipment, the transmitting optical power of OLT equipment, OLT equipment are for the received optical power of ONU; The luminous power fiducial value comparison of the luminous power data of OLT that said basis is obtained and ONU equipment optical module and said optical module comprises with the circuitry obstacle of confirming the PON network: when the received optical power of ONU or OLT equipment is lower than the received optical power fiducial value of equipment, judges disconnected fine obstacle takes place; And/or the received optical power of working as ONU or OLT equipment is judged the supersaturation obstacle is taken place above prescribing a time limit on the received optical power fiducial value of equipment; And/or when the downstream attenuation of circuit between OLT and the ONU exceeds the fluctuation range of the fiducial value that decays, judge the deterioration obstacle takes place.
Preferably, this method also comprises: when circuitry obstacle occurring, combine ODN topological tree structure that the ODN circuitry obstacle is positioned.
Preferably, in conjunction with ODN topological tree structure the ODN circuitry obstacle is positioned and comprise: all ONU equipment on the ODN topological tree are carried out fault indicate; The probability of malfunction that indicates the circuit at ONU equipment place according to the fault of ONU equipment carries out weighting; Probability weights according to line fault on the ODN network carry out fault location.
Preferably, the optical module data comprise the optical module physical data; The optical module data that said basis is obtained and the comparison of fiducial value comprise to confirm the PON network failure: according to the comparison of the benchmark physical data of the said optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
Preferably, physical data comprises electric current, voltage, temperature.
According to a second aspect of the invention, a kind of PON network failure checkout gear is provided also, comprises: the optical module data acquisition module is used for obtaining PON network OLT and ONU equipment optical module data; The network failure determination module is used for comparison according to the optical module data obtained and fiducial value with definite PON network failure.
It is characterized in that the optical module data comprise the luminous power data of optical module; Said network failure determination module comprises that the optical link fault confirms the unit, is used for according to the luminous power fiducial value of the luminous power data of OLT that obtains and ONU equipment optical module and said optical module relatively with the circuitry obstacle of definite PON network.
Preferably, the luminous power data comprise: the received optical power of the transmitting optical power of ONU equipment, ONU equipment, the transmitting optical power of OLT equipment, OLT equipment are for the received optical power of ONU; When said optical link fault confirms that the received optical power fiducial value that the received optical power of ONU or OLT equipment is lower than equipment is worked as in the unit, judge disconnected fine obstacle takes place; And/or the received optical power of working as ONU or OLT equipment is judged the supersaturation obstacle is taken place above prescribing a time limit on the received optical power fiducial value of equipment; And/or when the downstream attenuation of circuit between OLT and the ONU exceeds the fluctuation range of the fiducial value that decays, judge the deterioration obstacle takes place.
Preferably, also comprise the line fault locating module, be used for when circuitry obstacle occurring, combining ODN topological tree structure that the ODN circuitry obstacle is positioned.
Preferably, the line fault locating module comprises: fault indicates the unit, is used for that all ONU equipment on the ODN topological tree are carried out fault and indicates; The fault weighted units is used for carrying out weighting according to the probability of malfunction that the fault of ONU equipment indicates the circuit at ONU equipment place; Failure location unit is used for carrying out fault location according to the probability weights of line fault on the ODN network.
Preferably, the optical module data comprise the optical module physical data; Said network failure determination module comprises that equipment fault confirms the unit, is used for comparison according to the benchmark physical data of the said optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
Preferably, physical data comprises optical module temperature, voltage, bias current.
Preferably, also comprise: the fiducial value setting module is used to be provided with the fiducial value of said optical module.
An advantage of the present invention is, compares through obtaining OLT and ONU equipment optical module data and fiducial value, thereby confirms the PON network failure; Have very big different with the existing fault detection mode; Need not transform circuit, not have external testing equipment, cost is low.
With reference to the detailed description of accompanying drawing to exemplary embodiment of the present invention, it is clear that further feature of the present invention and advantage thereof will become through following.
Description of drawings
The accompanying drawing that constitutes the part of specification has been described embodiments of the invention, and is used to explain principle of the present invention together with the description.
With reference to accompanying drawing, according to following detailed, can be expressly understood the present invention more, wherein:
Fig. 1 illustrates the flow chart of an embodiment of PON network fault detecting method of the present invention.
Fig. 2 illustrates the flow chart of another embodiment of PON network fault detecting method of the present invention.
Fig. 3 illustrates the flow chart of another embodiment of PON network fault detecting method of the present invention.
Fig. 4 illustrates the flow chart of an embodiment of PON network failure locating method of the present invention.
Fig. 5 illustrates the structure chart of an embodiment of PON network failure checkout gear of the present invention.
Fig. 6 illustrates the structure chart of another embodiment of PON network failure checkout gear of the present invention.
Fig. 7 illustrates the structure chart of another embodiment of PON network failure checkout gear of the present invention.
Embodiment
To describe various exemplary embodiment of the present invention in detail with reference to accompanying drawing now.It should be noted that: only if specify in addition, otherwise the positioned opposite of parts of in these embodiment, setting forth and step, numeral expression formula and numerical value do not limit the scope of the invention.
Simultaneously, should be understood that the size of the various piece shown in the accompanying drawing is not to draw according to the proportionate relationship of reality for the ease of describing.
Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the present invention and application or use.
Possibly not go through for the known technology of association area those of ordinary skill, method and apparatus, but under suitable situation, said technology, method and apparatus should be regarded as a part of authorizing specification.
In shown here and all examples of discussing, it only is exemplary that any occurrence should be interpreted as, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and the letter accompanying drawing below, therefore,, then in accompanying drawing subsequently, need further not discuss it in case defined in a certain Xiang Zaiyi accompanying drawing.
Different with the fault detect targeting scheme of prior art; Technical scheme in the embodiment of the invention is through detecting OLT (Optical Line Terminal in the PON network; Optical line terminal) and/or ONU (Optical Network Unit, optical network unit) equipment optical module data, like optical module luminous power data and/or physical data; And compare with the fiducial value of equipment or circuit itself, thereby the obstacle that carries out the PON network is judged and the location.
Nominal value is to measure the bound of project by each of decisions such as the manufacturer of ONU or OLT, template model, and these nominal values for example comprise transmitted power bound, received optical power bound, temperature bound, electric current bound, voltage bound.Break through these bounds and can think data exception.
Fiducial value is meant the value as equipment or circuit benchmark, usually is installed to the monitor value that meets producer's nominal that records after online according to equipment and confirms.Also can be under the particular case with the nominal value of producer as fiducial value.Under the prerequisite of network operate as normal, the relevant monitor value of each network equipment should fluctuate in the small scope that with the fiducial value is the center, if surpass fluctuation range, can be considered abnormal data.Fiducial value according to Monitoring Data and equipment or circuit itself compares to judge whether Monitoring Data is normal, and unusual degree.
Introduce detection of optical module data base value and affirmation below.
The fiducial value of circuit OLT, ONU end optical module data is accomplished through collecting after the online implementing.Newly-increased PON user collects fiducial value after its new clothes are accomplished.
In the fiducial value collection process,, meet then further computational scheme decay of nominal value at first with producer's nominal value comparison.
Line Attenuation passes through decay formula:
Line Attenuation=3 * | log
2The topological structure splitting ratio |+0.36 * line length+0.5 * flange number (1)
The downstream attenuation in theory of computational scheme; Compare with transmission, the received optical power of current PON equipment and ONU equipment; If be positioned at system's acceptable scope, then system is with the fiducial value of the numerical value that obtains as current circuit, so that be that later further analysis provides the basis.
When current Line Attenuation was not in the scope that system receives, system produced respective record, and the prompt system keeper needs a series of luminous power numerical value of this circuit are confirmed that the numerical value that the keeper confirms promptly is designated as the fiducial value of current circuit.
Fig. 1 illustrates the flow chart of an embodiment of PON network fault detecting method of the present invention.
As shown in Figure 1, step 102 is obtained OLT and ONU equipment optical module data in the PON network.The optical module data for example comprise luminous power data, the physical data of the optical module of OLT or ONU equipment; The luminous power data for example comprise received optical power and transmitting optical power etc., and physical data for example comprises optical module bias current, voltage, temperature etc.
In the foregoing description, compare, thereby confirm the PON network failure, have very big different with the existing fault detection mode through obtaining OLT and ONU equipment optical module data and fiducial value.This mode need not transformed circuit, does not have external testing equipment, and cost is low, can use accurate positioning at existing network.
System regularly obtains PON circuit OLT side and ONU sidelight module data, with the situation of change of the luminous power that detects circuit etc., thereby realizes the monitoring function to PON network line situation.Through online OLT, the ONU end optical module data of reading, realize discovery to the PON network obstacles.The optical module data of monitoring comprise:
1) OLT optical module data:
TEMPERATURE: the optical module temperature, VOL: voltage (volt), CURR: bias current (uA), POWERSEND:OLT transmitting optical power (dBm), OLT receives the luminous power of specific ONU, POWERRECEIVE:OLT received optical power (dBm);
2) ONU optical module data:
TEMPERATURE: optical module temperature, VOL: voltage (volt), CURR: bias current (uA), POWERSEND:ONU transmitting optical power (dBm), POWERRECEIVE:ONU received optical power (dBm).
After obtaining Monitoring Data, carry out data based on fiducial value and judge, stamp corresponding label.
1) optical data is judged:
Come judgment data whether normal according to fiducial value, judge that the luminous power measure and downstream attenuation are whether in the fluctuation range of fiducial value.
2) physical data is judged:
Come judgment data whether normal according to fiducial value, judge that the current/voltage temperature measure is whether in the fluctuation range of fiducial value.
If the data of obtaining have had deviation than the circuit fiducial value, and outside deviation thinks reasonable range in system, then produce early warning to this optical link.
According to the topological structure of optical fiber link under the PON mouth, in conjunction with other ONU equipment optical module data under the same PON mouth, comprehensive judgement provides corresponding early warning information.
Through reading PON network local side, user side optical module data, analyze the data that read, monitoring PON network line situation is found PON OLT, ONU equipment, PON ODN is potential or the obstacle that exists.
Fig. 2 illustrates the flow chart of another embodiment of PON network fault detecting method of the present invention.
As shown in Figure 2, step 202 is confirmed OLT and the luminous power data of ONU equipment and the fiducial value of physical data in the PON network.
Step 204 is obtained the luminous power data of OLT and ONU equipment optical module in the PON network.
Step 206 compares to confirm the circuitry obstacle of PON network according to the luminous power data of OLT that obtains and ONU equipment optical module and the luminous power fiducial value of optical module.
Step 208 is obtained the physical data of OLT and ONU equipment optical module in the PON network.
Step 210, according to the comparison of the benchmark physical data of the optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
In the foregoing description; Through obtaining optical power monitoring data and the physics Monitoring Data of OLT and ONU equipment in the PON network; And Monitoring Data and corresponding fiducial value compared, thereby confirm the line fault and the equipment fault of PON network, fault detect is effective comprehensively.
Fig. 3 illustrates the flow chart of another embodiment of PON network fault detecting method of the present invention.
As shown in Figure 3; Step 302; Obtain ONU with and line related on fiducial value and the system's deviator fiducial value of 10 scopes (ONU, OLT transmission received optical power, temperature, electric current, voltage separately) of OLT, system's deviator fiducial value refers to the scope that departs from that fiducial value allows.
Step 304 is calculated decay.All 10 measurement data and descending optical attenuation form the normal unusual sign of each through after relatively judging, flow is done corresponding judgment according to sign.
Step 308 in the physical characteristic, the Optical characteristics that do not have under the reference value situation, is stamped corresponding analysis result sign to flag bit.For example temperature surpasses the fiducial temperature maximum.
Does step 310 judge whether physics, optical characteristics all normal? If it is fiducial value (step 312) that the value of being tested then is set, otherwise, link fiducial value (step 314) to be confirmed.Continue step 318.
Step 316 has physical characteristic, Optical characteristics under the reference value situation, stamps corresponding analysis result sign to flag bit.
Does step 318 judge whether disconnected fine? If, then be labeled as disconnected fine (step 322), continue step 330; If not, it is disconnected fine to continue step 320., and the luminous power that refers to the optical fiber transmission is lower than the equipment receiving sensitivity, causes ONU or OLT equipment to accept.Disconnected fibre can cause communication disruption.When the received optical power of ONU or OLT is lower than the fiducial value of equipment, be judged to disconnected fine.
Step 320 judges whether deterioration, if not, continues step 326; If, then be labeled as deterioration (step 324), continue step 326.Deterioration refers to the severe especially of optical power attenuation that optical fiber transmits, has surpassed normal fluctuation range.Deterioration can cause traffic rate decline, error rate rising etc.When descending decay during, be judged to deterioration greater than the fluctuation range of fiducial value.
Step 326 judges whether supersaturation, if, then mark supersaturation (step 328); If, do not continue step 330.Supersaturation, the luminous power that refers to ONU or OLT reception is greater than fiducial value.Received optical power is crossed conference and is caused OLT, the ONU failure of decoding, and causes communication quality to descend, and supersaturation simultaneously also can injure components and parts, also reflect occurred on the optical-fiber network unusual.When surpassing the fiducial value upper limit, received optical power promptly is judged to supersaturation.
Does step 330 judge whether physical obstacle? If, mark physical obstacle (step 32) then, flow process finishes; If, flow process does not finish.Physical fault refers to that OLT or ONU itself fault have taken place.Judge through electric current, voltage, temperature.
In the foregoing description, compare to judge whether Monitoring Data is normal according to reference data or producer's nominal data of Monitoring Data and circuit itself, and unusual degree, thereby confirm to comprise obstacles such as optical fiber is disconnected, deterioration, equipment fault.
This method possesses the active monitoring function, realizes the real-time monitoring to responsible consumer ODN network quality.After the downward trend of ODN quality takes place, realize quality pre-alert.
When the obstacle of disconnected fine perhaps deterioration occurring, system provides the location logic of circuitry obstacle, and with the logic place of confirming that this obstacle takes place, logically our barrier point is divided into: trunk optical fiber, branch road optical fiber and one-level are to secondary optical fiber.
Fig. 4 illustrates the flow chart of an embodiment of PON network failure locating method of the present invention.
When carrying out the obstacle location, the optical power monitoring data of all ONU equipment on this ODN topological tree structure are at first measured or obtained in system, and the data of each ONU are carried out obstacle judge, indicates with the fault that obtains each ONU.Obstacle location logic is concerned about that wherein disconnected fibre and deterioration indicate.
The fault weighting is that ONU begins from the leaf of topological tree structure, and the ODN optical-fiber network is a tree structure, and typical tree structure is following:
PON connects optical fiber (trunk) and connects the one-level optical splitter and tell multifiber, and every optical fiber (one-level is to secondary optical fiber) connects the secondary optical splitter again and tells multifiber, and these optical fiber (branch road optical fiber) connect ONU equipment at last.
All ONU on the traversal topological tree; If there is circuitry obstacle in it; Then marking his probability of branch road fibre circuit obstacle at place is 1; The one-level at its place increases (1/ secondary splitting ratio) to the circuitry obstacle probability of secondary optical fiber, and the line fault probability of trunk optical fiber increases (1/ [secondary splitting ratio * one-level splitting ratio]); If there is not line fault in it, the probability that then marks the branch road fibre circuit obstacle at his place is 0, and the one-level at its place is 0 to the circuitry obstacle probability of secondary optical fiber, and the line fault probability of trunk optical fiber is 0.
After all ONU had handled, all optical fiber had all had circuitry obstacle probability weights on the ODN network, next just carried out the obstacle location.
The obstacle location begins from trunk optical fiber, travels through follow-up one-level to secondary optical fiber and branch road optical fiber.Whether the probability weights of judging circuitry obstacle on this optical fiber when greater than threshold value can judge this fibre circuit obstacle greater than preset threshold value (as 60%), and the follow-up optical fiber that stops this root optical fiber is judged, continues the judgement of other optical fiber; When less than threshold value, then continue the follow-up optical fiber of this root optical fiber is done identical judgement.After the judgement of accomplishing all optical fiber, the location of promptly having accomplished obstacle.
In the foregoing description, online acquisition OLT, ONU equipment optical module data, and the fiducial value that reads detected and confirm.In conjunction with the network topology resource data, realize the accurate location of ODN fault, that sectional location one-level light divides is above, a secondary light divide between, the ODN fault of secondary light below dividing.Through this method, can effectively find the obstacle of PON network and to obstacle location, the O&M personnel can go maintenance and repair to the appointed place according to obstacle and locating information, have promoted the efficient of the maintenance of PON network.
Fig. 5 illustrates the structure chart of an embodiment of PON network failure checkout gear of the present invention.As shown in Figure 5, this embodiment comprises optical module data acquisition module 51 and network failure determination module 52. wherein, and optical module data acquisition module 51 obtains OLT and ONU equipment optical module data in the PON network; The optical module data that network failure determination module 52 bases are obtained and the comparison of fiducial value are to confirm the PON network failure.
Fig. 6 illustrates the structure chart of another embodiment of PON network failure checkout gear of the present invention.As shown in Figure 6, comprise fiducial value setting module 63, optical module data acquisition module 51 and network failure determination module 62 among this embodiment.Wherein, network failure determination module 62 comprises that the optical link fault is confirmed unit 621 or/and equipment fault confirms that unit 622. fiducial value setting modules 63 are provided with the optical module fiducial value.In one embodiment, the optical module data comprise the luminous power data of optical module.The luminous power data for example comprise the transmitting optical power, OLT equipment of received optical power, the OLT equipment of transmitting optical power, the ONU equipment of the ONU equipment received optical power for ONU.The optical link fault confirms that unit 621 compares to confirm the circuitry obstacle of PON network according to the luminous power data of OLT that obtains and ONU equipment optical module and the luminous power fiducial value of optical module.For example, when the received optical power of ONU or OLT equipment surpasses on the received optical power fiducial value of equipment in limited time, judge the supersaturation obstacle takes place; And/or when the downstream attenuation of circuit between OLT and the ONU exceeds the fluctuation range of the fiducial value that decays, judge the deterioration obstacle takes place.
In one embodiment, the optical module data comprise the optical module physical data; Physical data comprises optical module temperature, voltage, bias current.Equipment fault confirm unit 622 according to the comparison of the benchmark physical data of the said optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
Fig. 7 illustrates the structure chart of another embodiment of PON network failure checkout gear of the present invention.As shown in Figure 7, comprise fiducial value setting module 63, optical module data acquisition module 51, network failure determination module 62 and line fault locating module 74. among this embodiment wherein, network failure determination module 62 comprises that the optical link fault confirms unit 621.Line fault locating module 74 combines ODN topological tree structure that the ODN circuitry obstacle is positioned when circuitry obstacle occurring.
In one embodiment, line fault locating module 74 comprises: fault indicates unit 741, is used for that all ONU equipment on the ODN topological tree are carried out fault and indicates; Fault weighted units 742 is used for carrying out weighting according to the probability of malfunction that the fault of ONU equipment indicates the circuit at ONU equipment place; Failure location unit 743 is used for carrying out fault location according to the probability weights of line fault on the ODN network.
Technical scheme of the present invention can apply to the FTTX operation maintenance, realizes the accurate location of PON network ODN obstacle and the active discovery and the early warning of ODN obstacle.
Through the scheme that this patent provides, can realize the active monitoring of ODN circuit.Find ODN obstacle or potential problems (optical fiber deterioration) through active monitoring, in time send fault pre-alarming.The O&M personnel can in time repair obstacle according to early warning, promote user's perception.
The technical scheme of the embodiment of the invention, not external testing equipment through reading OLT/ONU equipment optical module data, realizes ODN obstacle location, is the innovation to the ODN Fault Locating Method.Utilize resource data and PON network topology structure to realize declaring barrier and obstacle positioning function, provide effective ODN to declare the scheme of barrier and obstacle location.Compare with prior art, the technical scheme of the embodiment of the invention does not increase external testing equipment, need not transform circuit, and cost is low, invests for a short time, does not introduce new fault point.Through reading OLT/ONU both-end luminous power data and effective algorithm location ODN fault, locate PON network ODN obstacle fast, the system that is easy to solves the difficult problem of ODN obstacle location in the existing network application deployment.After this method existing network is used, can effectively find the obstacle of PON network and realize accurately location.The O&M personnel go maintenance and repair according to obstacle and locating information to the appointed place, no longer need arrive first user side through OTDR tester location barrier point, carry out obstruction recovery to barrier point again, shorten repair time, promote PON network O&M efficient.
So far, described in detail according to PON network fault detecting method of the present invention and device.For fear of covering design of the present invention, details more known in the field are not described.Those skilled in the art can understand fully and how implement technical scheme disclosed herein according to top description.
Possibly realize method and system of the present invention with many modes.For example, can realize method and system of the present invention through any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of said method only is in order to describe, and the step of method of the present invention is not limited to above specifically described order, only if otherwise specify.In addition, in certain embodiments, also can the present invention be embodied as the program that is recorded in the recording medium, these programs comprise and are used to realize machine readable instructions according to the method for the invention.Thereby the present invention also covers the recording medium that storage is used to carry out program according to the method for the invention.
Though specific embodiments more of the present invention are specified through example, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit scope of the present invention.It should be appreciated by those skilled in the art, can under situation about not departing from the scope of the present invention with spirit, above embodiment be made amendment.Scope of the present invention is limited accompanying claims.
Claims (15)
1. an EPON (PON) network fault detecting method is characterized in that, comprising:
Obtain optical line terminal in the PON network (OLT) and optical network unit (ONU) equipment optical module data;
According to the comparison of optical module data of obtaining and fiducial value to confirm the PON network failure.
2. method according to claim 1 is characterized in that, said optical module data comprise the luminous power data of optical module;
The optical module data that said basis is obtained and the comparison of fiducial value are to confirm that the PON network failure comprises:
Compare to confirm the circuitry obstacle of PON network according to the luminous power data of OLT that obtains and ONU equipment optical module and the luminous power fiducial value of said optical module.
3. method according to claim 2 is characterized in that, said luminous power data comprise: the received optical power of the transmitting optical power of ONU equipment, ONU equipment, the transmitting optical power of OLT equipment, OLT equipment are for the received optical power of ONU;
The luminous power fiducial value comparison of the luminous power data of OLT that said basis is obtained and ONU equipment optical module and said optical module comprises with the circuitry obstacle of confirming the PON network:
When the received optical power of ONU or OLT equipment is lower than the received optical power fiducial value of equipment, judges disconnected fine obstacle takes place;
And/or
When the received optical power of ONU or OLT equipment surpasses on the received optical power fiducial value of equipment in limited time, judge the supersaturation obstacle takes place;
And/or
When the downstream attenuation of circuit between OLT and the ONU exceeds the fluctuation range of the fiducial value that decays, judge the deterioration obstacle takes place.
4. according to the method described in claim 2 or 3, also comprise: when circuitry obstacle occurring, combine ODN topological tree structure that the ODN circuitry obstacle is positioned.
5. method according to claim 4 is characterized in that, said combination ODN topological tree structure positions the ODN circuitry obstacle and comprises:
All ONU equipment on the ODN topological tree are carried out fault to indicate;
The probability of malfunction that indicates the circuit at ONU equipment place according to the fault of ONU equipment carries out weighting;
Probability weights according to line fault on the ODN network carry out fault location.
6. according to any described method in the claim 1 to 3, it is characterized in that the optical module data comprise the optical module physical data;
The optical module data that said basis is obtained and the comparison of fiducial value are to confirm that the PON network failure comprises:
According to the comparison of the benchmark physical data of the said optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
7. method according to claim 6 is characterized in that said physical data comprises optical module bias current, voltage, temperature.
8. a PON network failure checkout gear is characterized in that, comprising:
The optical module data acquisition module is used for obtaining PON network OLT and ONU equipment optical module data;
The network failure determination module is used for comparison according to the optical module data obtained and fiducial value with definite PON network failure.
9. device according to claim 8 is characterized in that, said optical module data comprise the luminous power data of optical module;
Said network failure determination module comprises that the optical link fault confirms the unit, is used for according to the luminous power fiducial value of the luminous power data of OLT that obtains and ONU equipment optical module and said optical module relatively with the circuitry obstacle of definite PON network.
10. device according to claim 9 is characterized in that, said luminous power data comprise: the received optical power of the transmitting optical power of ONU equipment, ONU equipment, the transmitting optical power of OLT equipment, OLT equipment are for the received optical power of ONU;
When said optical link fault confirms that the received optical power fiducial value that the received optical power of ONU or OLT equipment is lower than equipment is worked as in the unit, judge disconnected fine obstacle takes place;
And/or
When the received optical power of ONU or OLT equipment surpasses on the received optical power fiducial value of equipment in limited time, judge the supersaturation obstacle takes place;
And/or
When the downstream attenuation of circuit between OLT and the ONU exceeds the fluctuation range of the fiducial value that decays, judge the deterioration obstacle takes place.
11. the device according to described in claim 9 or 10 also comprises the line fault locating module, is used for when circuitry obstacle occurring, combining ODN topological tree structure that the ODN circuitry obstacle is positioned.
12. device according to claim 11 is characterized in that, said line fault locating module comprises:
Fault indicates the unit, is used for that all ONU equipment on the ODN topological tree are carried out fault and indicates;
The fault weighted units is used for carrying out weighting according to the probability of malfunction that the fault of ONU equipment indicates the circuit at ONU equipment place;
Failure location unit is used for carrying out fault location according to the probability weights of line fault on the ODN network.
13. any described device in 10 is characterized in that the optical module data comprise the optical module physical data according to Claim 8;
Said network failure determination module comprises that equipment fault confirms the unit, is used for comparison according to the benchmark physical data of the said optical module of the physical data of OLT that obtains or ONU equipment optical module to confirm OLT or ONU equipment fault.
14. device according to claim 13 is characterized in that, said physical data comprises optical module bias current, voltage, temperature.
15. device according to claim 8 is characterized in that, also comprises: the fiducial value setting module is used to be provided with the fiducial value of said optical module.
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| CN201110414895.XA CN102386974B (en) | 2011-12-13 | 2011-12-13 | PON (passive optical network) network fault detection method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296039A (en) * | 2007-04-28 | 2008-10-29 | 英保达股份有限公司 | Optical fiber link monitoring system and method for passive optical fiber network |
| CN101296034A (en) * | 2007-04-26 | 2008-10-29 | 华为技术有限公司 | Method and apparatus for transmission of monitoring information, passive optical network system |
| CN101466146A (en) * | 2009-01-08 | 2009-06-24 | 上海交通大学 | Multi-target orientation method of wireless sensor network based on probability weighting |
| US20100183298A1 (en) * | 2009-01-21 | 2010-07-22 | Calix Networks, Inc. | Passive optical network protection switching |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | 中国移动通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
-
2011
- 2011-12-13 CN CN201110414895.XA patent/CN102386974B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296034A (en) * | 2007-04-26 | 2008-10-29 | 华为技术有限公司 | Method and apparatus for transmission of monitoring information, passive optical network system |
| CN101296039A (en) * | 2007-04-28 | 2008-10-29 | 英保达股份有限公司 | Optical fiber link monitoring system and method for passive optical fiber network |
| CN101466146A (en) * | 2009-01-08 | 2009-06-24 | 上海交通大学 | Multi-target orientation method of wireless sensor network based on probability weighting |
| US20100183298A1 (en) * | 2009-01-21 | 2010-07-22 | Calix Networks, Inc. | Passive optical network protection switching |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | 中国移动通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
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