CN100401661C - Optical fibre fault monitoring and positioning system for communication network and method thereof - Google Patents
Optical fibre fault monitoring and positioning system for communication network and method thereof Download PDFInfo
- Publication number
- CN100401661C CN100401661C CNB2004100083195A CN200410008319A CN100401661C CN 100401661 C CN100401661 C CN 100401661C CN B2004100083195 A CNB2004100083195 A CN B2004100083195A CN 200410008319 A CN200410008319 A CN 200410008319A CN 100401661 C CN100401661 C CN 100401661C
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- communication network
- fiber
- network
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a communication network of optical fiber, and discloses communication network optical fiber fault monitoring and positioning system and a method thereof. The present invention realizes the automatic alarm, the automatic testing and the fault localization of an optical communication system. The communication network optical fiber fault monitoring and positioning system integrates a network management system and an optical fiber fault localization system of the prior art, and adds an optical fiber monitoring coincidence relation module which is used for recording the coincidence relation of optical fiber testing units and the ports of a communication device of the communication network which is monitored by the optical fiber testing units. When warning signals of the communication device are received, the corresponding optical fiber testing units are inquired from the optical fiber monitoring coincidence relation module, the optical fiber testing units are started to test, and the fault is analyzed and positioned according to test results.
Description
Technical field
The present invention relates to communication network, particularly monitoring of communication network fiber failure and location technology based on optical fiber.
Background technology
Optical cable is owing to bandwidth, speed height, highway as the telecommunication industry, just be widely used in the transmission network of telecommunications, broadcasting and TV, UNICOM, railway, electric power and army, forming national nervous system, making the information of all trades and professions can be able to timely perception.Therefore, in case circuit goes wrong, will bring about great losses.As these big and small network managers, all wish when, where to know to occur what problem timely, and propose solution.For cable network, it not only has accident to take place, and also because optical fiber is a kind of meeting medium of deterioration gradually, must know its past and present operation conditions, and analyzes following trend, just can make rectification scheme.Therefore, set up optical cable monitoring system, realize monitoring the communications optical cable optical fiber transmission property real-time, on-line automaticly and change, monitoring optical cable and optical fibres abort situation, Cable's Fault be can effectively prevent and compress, cable network high-quality, efficient, safe, stable operation guaranteed.
(the Optical fiber cable line Automatic MonitoringSystem of optical cable auto monitoring system, be called for short " OAMS ") be by being distributed in the optical device of lot of data collection point in the lightguide cable link, a large amount of basic datas with the Optical Fiber Transmission performance, as indexs such as luminous powers, be delivered to monitoring center at different levels and monitoring station, and its data are analyzed and handle, in time, exactly cable system ruuning situation is fed back to the attendant, make the attendant can in time find and repair fault.The OAMS system merges modern network communication, compunication, optical measuring technique, utilize technology such as GIS-Geographic Information System to provide reliable assurance simultaneously for line information, fault location, variation and optical fiber to fibre core sending allowance characteristic in the optical cable are blocked situations such as fault, can realize distributed real-time, online automatic monitoring, and do not influence in transmission performance, reach service and safeguard the purpose of neglecting neither with optical transmission system.
OAMS mainly is made up of monitoring center, area monitoring center, field monitoring station.Monitoring center is responsible for each monitoring station is controlled, and is the center of collection and deal with data, by data transmission network each measuring station is set up into net.The monitoring station is responsible for that lightguide cable link is carried out Remote and is monitored automatically, follow the tracks of the variation of fiber transmission attenuation, by alarm-monitor module, optical time domain reflectometer (Optical Time DomainReflectometer, abbreviation " OTDR ") module, control module, power module, optical switch, Wave division multiplexing (Wavelength Division Multiplexing is called for short " WDM "), filter, data transmission module etc. and corresponding software (containing the OTDR simulation software) are formed.
OAMS can be to the automatic accurate location of supervision, fault of properties of optical fiber cable deterioration, improve maintenance efficiency etc. plays a role.It not only can in time handle the obstacle that has taken place, shortens obstacle greatly and lasts, and can find the obstacle accident symptom of a trend in advance simultaneously, in time handles, and removes a hidden danger, and effectively prevents the generation of pernicious obstacle.
Integrated optical fiber optical cable automatic monitored control system in long-distance transmission equipment, the geographical environment that long haul system is crossed over is very complicated, and the equipment disposition inequality in case transmission cable is aging, damaged, will transmits business and cause the influence that can't estimate.The optical cable fracture will directly cause all service disconnection, and consequence is very serious.In the optical cable repair process, the location of fault point also needs specialized equipment to measure, as optical time domain reflectometer etc.The attendant that these incipient faults of Transmission Fibers have increased operator greatly is equipped with and safeguards the instrument investment.The OAMS system utilizes the OTDR technology, by the reflectance spectrum at different distance place on the test Transmission Fibers path, obtains loss, optical connector loss characteristic and the historical variations trend thereof of fibre circuit, and the optical fiber early warning of wearing out is provided.As exist fiber failure, OAMS system can send corresponding alarm and accurate light path point of interruption position, location and breakpoint type, make things convenient for fibre circuit to safeguard and monitoring.Embedded OAMS characteristic can further be improved the alarm performance of transmission equipment in the transmission system, becomes the passive active maintenance that is maintained as, and has strengthened the maintainability of transmission network.
Network management system (Network Manager system is called for short " NMS ") to the monitoring and the maintenance of network, plays an important role.It can carry out the analysis and the processing of network failure management and anomalous event by the warning information of network element transmission to optical-fiber network.In optical fiber telecommunications system, various Cable's Fault are the subject matter that influences the normal operation of optical communication system service quality collecting system.In order to make network that the supervision and the managerial skills of higher degree be arranged, improve the service level and the competitiveness of the whole network, simultaneously, in order be rapidly from a large amount of initial data of optic cable design, the maintenance management stage accumulation of constructing and data, to obtain relevant information easily, and then these initial data are reprocessed and analysis and utilization, satisfy the higher level requirement of future network management, setting up monitor set, webmaster and a document management is very to be necessary in the comprehensive fiber cable network management system of one.This system builds up, and can fundamentally improve the passive situation of safeguarding of present lightguide cable link, makes the maintenance of fiber cable network change intelligent maintenance into from the tradition maintenance.System can be widely used in fiber optic cable monitor and optical-fiber network area of maintenance, on fiber optic cable monitor equipment, set up unified management platform, provide comprehensively at the development of infrastructure network, the computer support means of monitoring and maintenance management, finish network failure is in time handled, the network performance status analysis, tasks such as network O﹠M cost accounting, realize the computerization and the intellectuality of fiber optic network maintenance management, the manager is come into plain view to the deployment conditions of maintenance work, and on this basis, further finish higher level network management work such as networking programmed decision-making.
Optical transmission device is because the information transmitted amount is big, and distance, luminous power are very big, cause the loss of optical device bigger, especially in distance transmission system, owing to loss, the curve that its power bracket and OTDR test out all changes transmission equipment to some extent at several Nian Houhui of operate as normal.Therefore, the attendant need carry out routine inspection to equipment, will adjust some parameters where necessary.And store new test curve, as after the test reference curve of a period of time.
In the existing optical network device fault management technology, by NMS management of optical fibers transmission equipment, when equipment or optical fiber break down, all can send a warning message to NMS, because NMS can't distinguish this two kinds of faults, only test with the location reason by special equipment.Commonly used is to utilize OTDR equipment and management software thereof to come fault location at present, OTDR is connected on the interface of optical fiber and equipment, supervision test software by OTDR judges whether it is the problem of optical fiber, if, then demonstrate the trouble location of optical fiber, judge it is that fault has appearred in which network element on the former NMS webmaster otherwise also must arrive.
In actual applications, there is following problem in such scheme: optical network device fault management needs two cover management equipment, coordinate cumbersome; Need carry out manual analyzing respectively with fault location with two complete equipments when problem occurs, waste time and energy, make that the network Mean Time To Recovery is longer, service outage duration is longer, influences the user and normally uses; The situation of the optical fiber deterioration that the OTDR system can't find it in time reports the NMS system, and the NMS system only just can pinpoint the problems when service disconnection; If will realize real-time monitoring, need add independently functional module in addition, the cost height, and can not effectively use resource.
Cause the main cause of this situation to be, at present OTDR and NMS two overlap independently management system, and the information of both inside can not be shared, and this makes that the efficient of the discovery of fiber failure and processing is lower, test process need be finished manually simultaneously, does not realize automation.
Summary of the invention
In view of this, main purpose of the present invention is to provide the monitoring of a kind of communication network fiber failure and navigation system and method thereof, make the automatic alarm of optical communication system, automatically the test and fault location be achieved.
For achieving the above object, the invention provides a kind of communication network fiber failure monitoring and navigation system, comprise
At least one OTDR test optical fiber unit is used for the performance and the abort situation of detection fiber;
Fiber-optic monitoring corresponding relation module is used for writing down the corresponding relation of the port of the described communication network communication equipment that described OTDR test optical fiber unit and its monitored;
The network management subsystem, be used for according to alarm signal from described communication equipment, the corresponding OTDR test optical fiber unit of inquiry starts this OTDR test optical fiber unit and tests from described fiber-optic monitoring corresponding relation module, and fault is analyzed and is located according to test result.
Wherein, described OTDR test optical fiber unit is the optical time domain reflectometer of plate form or autonomous device form.
Described fiber-optic monitoring corresponding relation module is in described network management subsystem.
Described network management subsystem also is used for the management to whole communication network, and periodically starts described test optical fiber unit the optical fiber in the described communication network is carried out poll test.
Described alarm signal can be that remote signaling is lost or the alarm signal of any necessity of distal frame lossing signal or user's appointment.
Described network management subsystem starts the test optical fiber unit by the roll-call test command to be tested.
The present invention also provides a kind of communication network fiber failure monitoring and localization method, comprises following steps:
The network management subsystem receives the alarm signal from communication equipment in the described communication network;
From fiber-optic monitoring corresponding relation module, inquire about corresponding OTDR test optical fiber unit according to described alarm signal, and start this OTDR test optical fiber unit and test;
State to communication equipment in test result and the described communication network is analyzed, and obtains the fault location result.
Wherein, also comprise following steps:
Described fault location result is reported the network manager.
Described alarm signal can be that remote signaling is lost or the alarm signal of any necessity of distal frame lossing signal or user's appointment.
By relatively finding, technical scheme difference with the prior art of the present invention is, with originally independently NMS and OTDR management system be integrated in the system, information sharing, and increased fiber-optic monitoring corresponding relation module, thereby realized the automatic monitoring and the fault location of fault, can carry out early warning the optical fiber of deterioration gradually.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly by the automation detection of fault and location having been shortened equipment fault mean time to repair, has saved manpower, has improved troubleshooting efficient; Can prevent the generation of some faults to the early warning of the optical fiber of deterioration gradually, improve the reliability of communication network.
Description of drawings
Fig. 1 is integrated form communication network fiber failure monitoring according to an embodiment of the invention and navigation system structure chart;
Fig. 2 is the mapping table of preserving in the fiber-optic monitoring corresponding relation module in the network management subsystem according to an embodiment of the invention;
Fig. 3 is the flow chart of communication network fiber failure monitoring according to an embodiment of the invention and localization method.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the monitoring of integrated form communication network fiber failure and the navigation system of present embodiment are made up of network management subsystem 10 and equipment 20, wherein, equipment 20 is made up of transmission equipment 21 and OTDR test optical fiber unit 22, and promptly OTDR has been integrated among the system as a module of equipment.
Wherein, network management subsystem 10 is used to carry out fiber optic network management, comprises according to the test result of alarm signal and OTDR test optical fiber unit 22 fault is analyzed and being located.What the optical network management subsystem 10 among the present invention was different with existing network management system is it is integrated original NMS Functions of Management System and OTDR Functions of Management System.The user can be directly on network management subsystem 10 by OTDR test optical fiber unit 22 is provided with the control of realization to it, thereby realize the automatic monitoring of optical transmission device and to the automatic analysis and the early warning of fault.
Equipment 20 is used to the function of the equipment of finishing, the simultaneously integrated test function of OTDR.When breaking down, send alarm signal, for example RLOS, RLOF etc. simultaneously to NMS.Equipment 20 is made up of transmission equipment 21 and OTDR test optical fiber unit 22.
Transmission equipment 21 is used to the functions such as transmission of the equipment of finishing.There are a port and network management subsystem 10 to communicate simultaneously, alarm signal can be sent to network management subsystem 10.
OTDR test optical fiber unit 22 is used to finish the test function of transfer function and optical fiber.OTDR is an optical time domain reflectometer, is to be used for the instrument of measuring optical fiber performance.The rear orientation light that produces when OTDR utilizes light to propagate in optical fiber obtains the information of decay, can be used for measuring optical fiber decay, splicing loss, fiber failure point location and understands optical fiber along the loss distribution situation of length etc.Existing commercial chip can be finished major function.In an embodiment of the present invention, OTDR can be embedded in the equipment 20 as a veneer of transmission equipment 20, be OTDR test optical fiber unit 22, it is connected between the light mouth of transmission equipment 21 and optical fiber, and a port of communicating by letter with NMS is arranged simultaneously, is used for NMS and issues test command to OTDR.OTDR test optical fiber unit 22 can also be a separate equipment, only need provide one to be issued test command and reported the port of test result to get final product by NMS.OTDR has two kinds of test commands, autorun and roll-call test function.Automatically test command is used for periodically fixed time test, is mainly used in the manual test command that issues in the former technology of roll-call test command.In the present invention, network management (Network Management is called for short " NM ") and OTDR use a management system, i.e. network management system NMS.Can issue the roll-call test command to OTDR when needed by NMS, realize when breaking down and to have started the OTDR test timely by system, thereby shorten fault mean time to repair, improve system effectiveness.
The inventive point of native system is exactly the combination of NMS and OTDR, in the present embodiment, promptly is meant the combination of network management subsystem 10 and OTDR test optical fiber unit 22.In the present invention, a fiber-optic monitoring corresponding relation module is arranged, as shown in Figure 2 in network management subsystem 10.Record the information that the light mouth of the two ends network element of monitoring fiber and corresponding surveillance equipment are mapped in this fiber-optic monitoring corresponding relation module, this corresponding relation is just can decide in the design drawing of Cheng Qian is crossed in engineering construction.Normally whether the communication that OTDR equipment can be monitored an optical fiber, and if in case optical-fibre communications was lost efficacy, all can there be remote signaling to lose (Remote Loss OfSignal on the corresponding receiving terminal port of its two ends network element, abbreviation " RLOS "), distal frame is lost alarms such as (Remote Loss Of Frame are called for short " RLOF ").Therefore each OTDR port then must all be mapped with the port on the network element of two ends.As shown in Figure 2, when receiving predefined anomalous events such as RLOS, RLOF on network management subsystem 10 slave units 20, then Automatic Program is inquired about the information in the fiber-optic monitoring corresponding relation module, therefrom find corresponding OTDR test optical fiber unit 22, and issue the roll-call test command automatically, start relevant OTDR test optical fiber unit 22 and test.And in the prior art, when the user when NMS receives the alarm signals such as RLOS, RLOF of equipment, then need manually to go to use the OTDR tester to test.And in the present invention, the application of fiber-optic monitoring corresponding relation module makes alarm and test combine, and has realized automation.
The test result of 10 pairs of OTDR test optical fibers of network management subsystem unit 22 is carried out certain analyzing and processing, and with the final result report of user.For example,, then network element is carried out necessary inspection if OTDR test finds that optical fiber is normal, and with report of user as a result.Just can get rid of the influence of fiber break like this during the customer analysis problem, help finding faster failure cause; If OTDR result and test benchmark curve ratio are found fiber break, then directly with fiber break reporting position user, such as fault message is notified to the network manager by short message way, network manager even can not need to come back machine room and handle, but directly go to corresponding place to carry out maintenance work according to concrete fault message notice associated maintenance personnel.So just can improve response speed effectively to fault.
Network management subsystem 10 can also be provided with the poll test to OTDR, when OTDR finds that optical fiber has the sign of deterioration, just report NMS, NMS inquires about corresponding ports by Automatic Program from fiber-optic monitoring corresponding relation module, and then can find all business information on these ports, related service is carried out automatic early-warning.Automatically the curve during the storing fiber optic operate as normal is as the test benchmark curve in a period of time after this.
Also has a replacement scheme, be that OTDR test optical fiber unit 22 and network management subsystem 10 still use original management system separately, OTDR can be a separate equipment herein, but in the NM management system, increase mechanism in 10 with the OTDR communication, when anomalous event takes place, NM initiatively issues test command to the OTDR management system, and the OTDR management system reports the NM management system with test result, and NM is for further processing according to return results.Still need the fiber-optic monitoring corresponding relation module in the former scheme in the NM management system.Compare with former scheme like this, just wasted some resources, promptly many management systems, and the communication mechanism between many programs.The technique effect of obtaining is the same.
Fig. 3 shows the flow chart of a kind of communication network fiber failure monitoring and localization method.
In step 100, the alarm signal that network management subsystem 10 receives from equipment 20.Alarm signal can be the alarm signal of any necessity of RLOS, RLOF or user's appointment.
After this enter step 110, network management subsystem 10 is inquired about corresponding OTDR test optical fiber unit 22 according to alarm signal from fiber-optic monitoring corresponding relation module, and starts this OTDR test optical fiber unit 22 and test.For example the RLOS fault takes place in the left-hand interface of alarm signal indication transmission equipment B, can find corresponding OTDR test optical fiber unit 22 in fiber-optic monitoring corresponding relation module shown in Figure 2 is OTDR plate A, so start the performance and the abort situation of OTDR plate A detection fiber.
After this enter step 120, the state of equipment 20 (being also referred to as network element) is analyzed in 10 pairs of test results of network management subsystem and the communication network, obtains the fault location result.For example the RLOS fault takes place in the left-hand interface of alarm signal indication transmission equipment B, but corresponding OTDR plate A finds that by detecting optical fiber is normal, and the state of other information indicating equipments 20 of network management subsystem 10 is undesired, and then can tentatively obtain is the conclusion that equipment 20 breaks down.This conclusion is obtained automatically by system fully, does not need network manager's participation.
After this enter step 130, network management subsystem 10 reports the network manager with the fault location result.The mode that reports can have multiple, for example ejects the alarm dialog box in graphical interfaces, can also send sound and light alarm simultaneously, and for example by note concise and to the point fault location result is sent to mobile phone of system manager or the like.In a preferred embodiment of the present invention, also simultaneously with the fault location outcome record in the daily record of system.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (9)
1. a communication network fiber failure is monitored and navigation system, it is characterized in that, comprises
At least one OTDR test optical fiber unit is used for the performance and the abort situation of detection fiber;
Fiber-optic monitoring corresponding relation module is used for writing down the corresponding relation of the port of the described communication network communication equipment that described OTDR test optical fiber unit and its monitored;
The network management subsystem, be used for according to alarm signal from described communication equipment, the corresponding OTDR test optical fiber unit of inquiry starts this OTDR test optical fiber unit and tests from described fiber-optic monitoring corresponding relation module, and fault is analyzed and is located according to test result.
2. communication network fiber failure monitoring according to claim 1 and navigation system is characterized in that described OTDR test optical fiber unit is the optical time domain reflectometer of plate form or autonomous device form.
3. communication network fiber failure monitoring according to claim 1 and navigation system is characterized in that described fiber-optic monitoring corresponding relation module is in described network management subsystem.
4. communication network fiber failure monitoring according to claim 1 and navigation system, it is characterized in that, described network management subsystem also is used for the management to whole communication network, and periodically starts described OTDR test optical fiber unit the optical fiber in the described communication network is carried out poll test.
5. communication network fiber failure according to claim 1 monitoring and navigation system is characterized in that, described alarm signal can be that remote signaling is lost or the alarm signal of any necessity of distal frame lossing signal or user's appointment.
6. communication network fiber failure monitoring according to claim 1 and navigation system is characterized in that, described network management subsystem starts OTDR test optical fiber unit by the roll-call test command to be tested.
7. a communication network fiber failure is monitored and localization method, it is characterized in that, comprises following steps:
The network management subsystem receives the alarm signal from communication equipment in the described communication network;
From fiber-optic monitoring corresponding relation module, inquire about corresponding OTDR test optical fiber unit according to described alarm signal, and start this OTDR test optical fiber unit and test;
State to communication equipment in test result and the described communication network is analyzed, and obtains the fault location result.
8. communication network fiber failure monitoring according to claim 7 and localization method is characterized in that, also comprise following steps:
Described fault location result is reported the network manager.
9. communication network fiber failure according to claim 7 monitoring and localization method is characterized in that, described alarm signal can be that remote signaling is lost or the alarm signal of any necessity of distal frame lossing signal or user's appointment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100083195A CN100401661C (en) | 2004-03-03 | 2004-03-03 | Optical fibre fault monitoring and positioning system for communication network and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100083195A CN100401661C (en) | 2004-03-03 | 2004-03-03 | Optical fibre fault monitoring and positioning system for communication network and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1665173A CN1665173A (en) | 2005-09-07 |
| CN100401661C true CN100401661C (en) | 2008-07-09 |
Family
ID=35036086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100083195A Expired - Fee Related CN100401661C (en) | 2004-03-03 | 2004-03-03 | Optical fibre fault monitoring and positioning system for communication network and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100401661C (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10608736B2 (en) | 2003-03-03 | 2020-03-31 | Alexander Soto | System and method for performing in-service optical network certification |
| CN100474817C (en) * | 2005-10-14 | 2009-04-01 | 华为技术有限公司 | Managing system and method for access apparatus |
| CN101009518B (en) * | 2006-01-23 | 2011-11-16 | 华为技术有限公司 | Processing method of the failure relevancy monitoring for serial connection at different levels |
| CN100542072C (en) * | 2006-02-08 | 2009-09-16 | 华为技术有限公司 | The method of testing of passive optical network fault |
| CN101018089B (en) * | 2006-02-10 | 2010-08-04 | 华为技术有限公司 | Optical fiber automatic monitoring system and method |
| CN101110642B (en) * | 2006-07-19 | 2010-12-08 | 中兴通讯股份有限公司 | System fault detecting method and device |
| EP2034635B1 (en) | 2007-01-26 | 2012-08-15 | Huawei Technologies Co., Ltd. | A method for locating fiber event point and an optical network and network equipment thereof |
| CN101291176B (en) * | 2007-04-18 | 2012-07-04 | 华为技术有限公司 | Fault detection method, system and apparatus for optical distributed network |
| CN101335568B (en) * | 2007-06-28 | 2011-04-06 | 英保达资讯（天津）有限公司 | ONU terminal problem detection apparatus in PON system and method thereof |
| CN102098100A (en) * | 2010-12-29 | 2011-06-15 | 武汉光迅科技股份有限公司 | Method for automatically monitoring and maintaining optical cable |
| CN102723990A (en) * | 2012-07-04 | 2012-10-10 | 慈溪市供电局 | Pre-alarming method and pre-alarming device of optical cable problems |
| CN102811090A (en) * | 2012-08-20 | 2012-12-05 | 慈溪市供电局 | Method and system for roll-call testing of optical fibers |
| CN105790826B (en) * | 2014-12-22 | 2019-05-24 | 中兴通讯股份有限公司 | Fiber-optic monitoring method, apparatus and fiber adapter |
| CN105790833A (en) * | 2014-12-23 | 2016-07-20 | 中富通股份有限公司 | Dynamic optical network monitoring system based on GIS technology |
| CN104635312B (en) * | 2015-03-18 | 2017-01-18 | 成都信息工程大学 | Optical fiber fixing piece |
| CN105680938B (en) * | 2016-03-29 | 2018-04-24 | 中航光电科技股份有限公司 | A kind of HD video optical fiber transmission self checking method and device |
| CN106301548A (en) * | 2016-07-29 | 2017-01-04 | 董小方 | A kind of system and method for communications optical cable fault location |
| CN106301547A (en) * | 2016-08-24 | 2017-01-04 | 覃嘉雯 | A kind of optic-fiber monitoring system |
| CN112702113A (en) * | 2019-10-23 | 2021-04-23 | 中兴通讯股份有限公司 | Optical network detection method, system, electronic device and computer readable medium |
| CN113395108B (en) * | 2020-03-12 | 2022-12-27 | 华为技术有限公司 | Fault processing method, device and system |
| CN112290999A (en) * | 2020-10-29 | 2021-01-29 | 国网辽宁省电力有限公司信息通信分公司 | Optical fiber monitoring system for power networking |
| CN113490082A (en) * | 2021-07-02 | 2021-10-08 | 国网湖北省电力有限公司恩施供电公司 | Optical cable nursing interface module |
| CN114039658B (en) * | 2021-11-12 | 2024-02-09 | 国网河南省电力公司邓州市供电公司 | Intelligent optical fiber monitoring system based on coherent light |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364631Y (en) * | 1999-05-06 | 2000-02-16 | 山东省光科光纤通信科技开发中心 | Automatic monitoring in-situ controlling device for optic cable line |
| CN1294455A (en) * | 1999-10-26 | 2001-05-09 | 深圳市华为技术有限公司 | Automatic monitor system for optical fibre network |
| CN2450828Y (en) * | 2000-07-12 | 2001-09-26 | 信息产业部武汉邮电科学研究院 | Optical cable real time monitoring device |
| US20020176130A1 (en) * | 2001-05-24 | 2002-11-28 | Yoshiharu Maeno | Optical network with fault/normal pattern tables for identifying location of path failure |
| US20030210387A1 (en) * | 2000-12-04 | 2003-11-13 | Saunders Ross Alexander | Integrated optical time domain reflectometer and optical supervisory network |
-
2004
- 2004-03-03 CN CNB2004100083195A patent/CN100401661C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364631Y (en) * | 1999-05-06 | 2000-02-16 | 山东省光科光纤通信科技开发中心 | Automatic monitoring in-situ controlling device for optic cable line |
| CN1294455A (en) * | 1999-10-26 | 2001-05-09 | 深圳市华为技术有限公司 | Automatic monitor system for optical fibre network |
| CN2450828Y (en) * | 2000-07-12 | 2001-09-26 | 信息产业部武汉邮电科学研究院 | Optical cable real time monitoring device |
| US20030210387A1 (en) * | 2000-12-04 | 2003-11-13 | Saunders Ross Alexander | Integrated optical time domain reflectometer and optical supervisory network |
| US20020176130A1 (en) * | 2001-05-24 | 2002-11-28 | Yoshiharu Maeno | Optical network with fault/normal pattern tables for identifying location of path failure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1665173A (en) | 2005-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100401661C (en) | Optical fibre fault monitoring and positioning system for communication network and method thereof | |
| CN101252393B (en) | Optic cable automatic monitoring system with optical fiber automatic switch unit | |
| CN103441794B (en) | Transformer station's optical fiber failure positioning system and method | |
| CN102523037B (en) | Centralized monitoring and managing system for optical cable resources | |
| CN202856733U (en) | Optical cable management system ocms | |
| CN102437922B (en) | A kind of power telecom network business impact analysis method based on N-1 principle | |
| CN107528630B (en) | Dual-mode optical fiber monitoring system and method with protection optical path and fault self-healing function | |
| CN104283607A (en) | Optical fiber communication network monitoring protecting system and method thereof | |
| CN101630972A (en) | Optical fiber line intelligent detection system and optical fiber line intelligent detection method for wavelength division multiplex (WDM) network | |
| CN106330298A (en) | Real-time optical cable fiber core monitoring system | |
| CN101640818B (en) | Protection device and protection method of optical network | |
| CN107078795B (en) | Optical network node, the method for remotely detecting its power state, telecommunication network | |
| CN109818671B (en) | Control method and system for intelligent optical metrology | |
| CN208508943U (en) | A kind of fibre circuit monitoring system | |
| CN105227230A (en) | A kind of electric power monitoring system based on Optical Distribution Network | |
| CN105306268A (en) | Monitoring method of electric power monitoring system based on optical distribution network | |
| CN110086528A (en) | A kind of resource management system based on optical cable on-line monitoring | |
| CN102104422B (en) | System and method for monitoring quality of optical link of passive optical network | |
| CN104184518B (en) | Monitoring device and method for optical wavelength division multiplexing transmission system | |
| CN102684779A (en) | Centralized measurement device, failure monitoring method and system | |
| CN207853902U (en) | A kind of fiber optic network on-Line Monitor Device | |
| CN110086531A (en) | A kind of fiber optic testing system based on local area network | |
| CN100498267C (en) | Optical fiber fault automatic monitoring method | |
| CN1146154C (en) | Optical power monitoring system | |
| CN106571955A (en) | Optical power monitoring system cooperation intelligence optical fiber management system and fault processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20170303 |