CN102176685A - Optical fiber connection automatic identification and management system - Google Patents
Optical fiber connection automatic identification and management system Download PDFInfo
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- CN102176685A CN102176685A CN2011100826022A CN201110082602A CN102176685A CN 102176685 A CN102176685 A CN 102176685A CN 2011100826022 A CN2011100826022 A CN 2011100826022A CN 201110082602 A CN201110082602 A CN 201110082602A CN 102176685 A CN102176685 A CN 102176685A
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Abstract
The invention discloses an optical fiber connection automatic identification and management system. The system comprises a memory uniquely corresponding to an optical cable pigtail, a reader adaptive to the memory and an optical cable pigtail code identification device, wherein the memory comprises a unique code corresponding to the optical cable pigtail; the optical cable pigtail code identification device is connected with the reader and used for exchanging data with the reader. The optical fiber connection automatic identification and management system can automatically control the optical fiber use condition in a network in real time and completely do not need manual data entry, therefore, the workload of operation and maintenance staff is reduced, and accuracy and instantaneity of data are ensured fundamentally.
Description
Technical field
The present invention relates to the equipment management device in a kind of communications field, particularly a kind ofly the concrete purposes of each fibre core in the optical cable is carried out self registering a kind of optical fiber connect automatic identification and management system.
Background technology
Fiber optic network is the basis of modern communications.China's three big common carriers only optical fiber amount of purchase in 2009 just surpass 5,000 ten thousand core kilometers, in net optical cable mileage above 8,260,000 kilometers.Along with present user is increasing to the demand of access bandwidth, traditional user's copper cable access way will be inserted by optical cable and substitute.The light that promotes along with each wire communication operator advances copper and moves back progress with the FTTx engineering, and the use amount of optical fiber and the complexity of fiber optic network will sharply increase.
Optical fiber is owing to have very large bandwidth, can adapt to the professional of various bandwidth and be applied in the different networks, optical fiber in same optical cable may carry diverse business, in the face of different users, relate to a plurality of different departments, this has increased the complexity of fiber resource allotment and management.
Each common carrier all is to use database to write down each optical fiber purposes and operating position to the management of fiber optic network at present, according to the purposes of optical fiber in the network data in the database is carried out typing and modification in real time or regularly by operating personnel.Because the development of fiber optic network is very swift and violent, the business demand amount is very big, opening of a business tends to carry out the optical fiber jumper connection a plurality of innings of locations, the fiber resource operating position often is difficult in time be entered in the database, when carrying out the data typing, also be difficult to guarantee not careless omission, this will produce data information and current resources situation has the more phenomenon that do not match, and the mismatch problem of this data and present situation is difficult to find and revise, the long-term correct understanding of common carrier that in the past can influence to the fiber optic network resource situation, caused resource utilization low, problems such as customer demand reaction is untimely have influenced the operation construction cost and the market competitiveness of common carrier.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is at the deficiencies in the prior art, provides a kind of optical fiber to connect automatic identification and management system.
In order to solve the problems of the technologies described above, the invention discloses a kind of optical fiber and connect automatic identification and management system, comprise and the unique corresponding memory of optical cable tail optical fiber, the read write line adaptive, optical cable tail optical fiber encoding identification device with described memory;
Comprise the uniqueness coding corresponding in the described memory with an optical cable tail optical fiber;
Described optical cable tail optical fiber encoding identification device connects read write line, is used for carrying out exchanges data with read write line.
Just can guarantee each optical cable tail optical fiber of record controls with top, minimally realize purpose of the present invention by optical cable tail optical fiber encoding identification device electronization.Memory adopts ROM, EPROM, and EEPROM, flash memory etc. all can.
Among the present invention, further optimize, comprise optical fiber splice, described optical cable tail optical fiber and memory are arranged on the optical fiber splice, thus can so that optical cable tail optical fiber and memory integrated management avoid confusion.
Among the present invention, further optimize, comprise the tail optical fiber slot that is used to insert the optical cable tail optical fiber, the described read write line of integrated setting in the tail optical fiber slot, can realize being similar to the grafting of netting twine insertion slot type thus, on the basis of existing plug assembly, as long as small change adds read-write chip, just can realize the present invention, and after the memory of different optical fiber splices inserted slot, read write line can be read and write, universal height.
Among the present invention, further optimize, described optical cable tail optical fiber encoding identification device comprises the code identification single-chip microcomputer, described code identification single-chip microcomputer connects the FPDP of code identification encoder, code identification decoder and each read write line respectively, described encoder connects switch arrays, and described decoder connects the selection control port of each read write line.Can pass through switch arrays thus, a plurality of read write lines of corresponding control, and carry out single control or a plurality of control.
Among the present invention, further optimize, comprise the status indicator lamp corresponding with the optical cable tail optical fiber, described status indicator lamp connects the LED control device, be used to control the show state of indicator light, whether for example connect by showing that redness or green show, show by flicker and carry out transfer of data, concrete state definition can be provided with voluntarily.
Among the present invention, further optimize, described LED control device comprises LED control single chip computer, decoder and the led drive circuit that is connected with decoder, described status indicator lamp connects led drive circuit, the first-selected LED of the present invention, because long brightness height of its little power consumption life-span can certainly use other lighting devices.
Among the present invention, further optimize, comprise the communication control unit that is connected with optical cable tail optical fiber encoding identification device, described communication control unit comprises the Control on Communication single-chip microcomputer, described letter control single chip computer connects a network interface by a network card chip, can carry out interactive communication with the external network center by the Control on Communication single-chip microcomputer, thereby realizes Long-distance Control, significantly reduce human cost and time, accomplished instant maintenance substantially.
Among the present invention, further optimize, described optical cable tail optical fiber is more than one, all unique corresponding memory of each optical cable tail optical fiber.
Among the present invention, further optimize, described tail optical fiber slot is more than one, in each tail optical fiber slot all integrated setting a described read write line is arranged.
Among the present invention, further optimize, when tail optical fiber slot and read write line non-integral were provided with, described read write line was more than one, respectively the memory of each optical cable tail optical fiber of correspondence.
Beneficial effect: the present invention connects identification and management system automatically by optical fiber, system can in real time, automatically grasp optical fiber operating position in the network, do not need manually to get involved the typing work of data fully, not only reduce Operation and Maintenance personnel's workload, also fundamentally guaranteed the accuracy and the real-time of data.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is general illustration figure of the present invention.
Fig. 2 the present invention has the optical fiber distribution apparatus structural representation that connects identification automatically and management function.
Fig. 3 is a system configuration schematic diagram of the present invention.
Fig. 4 is an optical fiber splice schematic diagram of the present invention.
Fig. 5 is an optical cable tail optical fiber encoding identification device structural representation of the present invention.
Fig. 6 is a LED control device structural representation of the present invention.
Fig. 7 is a communication control unit structural representation of the present invention.
Embodiment
The invention discloses a kind of optical fiber and connect automatic identification and management system, comprise and the unique corresponding memory of optical cable tail optical fiber, the read write line adaptive, optical cable tail optical fiber encoding identification device with described memory; Comprise the uniqueness coding corresponding in the described memory with an optical cable tail optical fiber; Described optical cable tail optical fiber encoding identification device connects read write line, is used for carrying out exchanges data with read write line.Described optical cable tail optical fiber is more than one, all unique corresponding memory of each optical cable tail optical fiber.Described tail optical fiber slot is more than one, in each tail optical fiber slot all integrated setting a described read write line is arranged.
As shown in Figure 4, native system comprises optical fiber splice 7, and described optical cable tail optical fiber 5 and memory 6 are arranged on the optical fiber splice.Also comprise the tail optical fiber slot that is used to insert the optical cable tail optical fiber, the described read write line of integrated setting in the tail optical fiber slot.Described optical cable tail optical fiber encoding identification device comprises the code identification single-chip microcomputer, described code identification single-chip microcomputer connects the data transmission port of code identification encoder, code identification decoder and read write line respectively, described encoder connects switch arrays, and described decoder connects the selection port of each read write line.Comprise the status indicator lamp corresponding with the optical cable tail optical fiber in the system, described status indicator lamp connects the LED control device, is used to control the show state of indicator light.Described LED control device comprises LED control single chip computer, decoder and the led drive circuit that is connected with decoder, and described status indicator lamp connects led drive circuit.Comprise the communication control unit that is connected with optical cable tail optical fiber encoding identification device in the system, described communication control unit comprises the Control on Communication single-chip microcomputer, and described letter control single chip computer connects a network interface by a network card chip.
As shown in Figures 2 and 3, wherein have optical fiber and connect automatic identification and management system and be installed in and have on the optical fiber distribution apparatus that connects identification automatically and management function, form by distributing frame support body 1, the sub-frame 2 of optical fiber distributing and distributing frame control module 3.Distributing frame support body 1 provides support and fixes for sub-frame 2 of optical fiber distributing and distributing frame control module 3, the sub-frame 2 of optical fiber distributing is realized between optical cable Cheng Duan and optical fiber and the optical fiber, jumper connection function between optical fiber and the equipment, distributing frame control module 3 can read the storage chip content of tail optical fiber implantation and carry out data interaction with fiber resource management server 4.
The sub-frame 2 of optical fiber distributing is made up of some optical fiber pigtail interfaces, an optical fiber pigtail interface is made up of tail optical fiber storage chip read write line 21, tail optical fiber slot 22 and led state indicator light 23, after tail optical fiber inserts tail optical fiber slot 22, the read/write surface for read of its storage chip just in time contacts tail optical fiber storage chip read-write interface 21, can trigger the read-write state of storage chip and light status indicator lamp 23.Distributing frame control module 3 is made up of optical cable tail optical fiber encoding identification device, LED control device, communication control unit and network interface, optical cable tail optical fiber encoding identification device is realized the judgement to all tail optical fibers insertion states on the whole fibre distribution frame, and read coding in the corresponding tail optical fiber storage chip, and it is sent to communication control unit by read-write interface 21; The LED control device is according to the illuminating state of current tail optical fiber coding reading state or current tail optical fiber slot distribution condition state of a control indicator light 23; Communication control unit obtains the tail optical fiber numbering by optical cable tail optical fiber encoding identification device and data is undertaken synchronously by network interface and fiber resource management server, and can control the lighting mode of the status indicator lamp 23 of corresponding tail optical fiber slot according to the commands for controlling notice LED control device of fiber resource management server.The fiber resource management server is grasped in the whole networks on each distributing frame the situation that takies of optical cable fibre core and each optical communication system by distributing frame control module 3 and is organized situation from whole optical path end to end.
Embodiment
As shown in Figure 1, in the whole optical fiber wiring system that the present invention uses, respectively have the fibre distribution frame that connects identification automatically and management function and network by network interface and fiber resource management server 4.
As shown in Figure 2, in the sub-frame 2 of optical fiber distributing some optical cable tail optical fiber interfaces are arranged.An optical cable tail optical fiber interface is made up of tail optical fiber storage chip read-write interface 21, tail optical fiber slot 22 and status indicator lamp 23.Comprise a switch in the tail optical fiber slot 22, after tail optical fiber inserts tail optical fiber slot 22, stir this switch, make distributing frame control module 3 can know that these tail optical fiber slot 22 existing tail optical fibers insert.As shown in Figure 4, optical cable tail optical fiber 5 among the embodiment in the optical fiber splice 7 is all implanted with the storage chip 6 of uniqueness coding at interface position, when the tail optical fiber slot 22 in the sub-frame 2 of optical cable tail optical fiber insertion optical fiber distributing, the read/write surface for read of the storage chip on the optical cable tail optical fiber just in time contacts with tail optical fiber storage chip read-write interface 21, makes distributing frame control module 3 to read the data of storing in the tail optical fiber storage chip by tail optical fiber storage chip read-write interface 21.Status indicator lamp 23 is distinguished storage chip reading state in 3 pairs of tail optical fibers of current distributing frame control module by flashing modes different color or different, as: read, read failure, read successfully and wait.
Distributing frame control module 3 is main realize to the tail optical fiber institute microarray strip that is connected with each tail optical fiber slot 22 in the distributing frame reading writing working, control the state of each status indicator lamp 23 and carry out network service with fiber resource management server 4.As shown in Figure 3, be divided into optical cable tail optical fiber encoding identification device, LED control device, communication control unit from circuit structure, may by 1 ~ 3 even more multiple single chip microcomputer and some accessory circuits be formed during actual the realization.Adding some accessory circuits according to a single-chip microcomputer in the present embodiment forms the mode of a functional module and realizes distributing frame control module 3.As shown in Figure 5, optical cable tail optical fiber encoding identification device is made up of single-chip microcomputer, the encoder that links to each other with the switch arrays be made up of switch in each tail optical fiber slot 22 in the distributing frame, the decoder that links to each other with chip select line in each tail optical fiber storage chip read-write interface 21 in the distributing frame, single-chip microcomputer has an I/O mouth to connect the serial data delivery outlet in each tail optical fiber storage chip read-write interface 21 in the distributing frame by a storage chip serial bus, and other has two I/O mouths to be connected to the I/O mouth of single-chip microcomputer in LED control device and the communication control unit respectively.Encoder in the optical cable tail optical fiber encoding identification device forms coding according to the switch situation of the switch arrays of switch composition in each tail optical fiber slot 22 in the distributing frame, and whether inform has tail optical fiber to insert in each tail optical fiber slot of the present distributing frame of single-chip microcomputer.Tail optical fiber inserts state in each tail optical fiber slot that single-chip microcomputer provides according to encoder, by the chip select line input port input positive level of decoder, then by reading the tail optical fiber coding of storing in this storage chip with the storage chip serial bus to corresponding tail optical fiber storage chip read-write interface 21.
Single-chip microcomputer is sent to LED control device and communication control unit with tail optical fiber state in each tail optical fiber slot in the present distributing frame and coding respectively behind the package.
As shown in Figure 6, the LED control device is made up of the decoder that is connected to led drive circuit, single-chip microcomputer, single-chip microcomputer have in addition two I/O mouths respectively with the single-chip processor i/o mouth of optical cable tail optical fiber encoding identification device and communication control unit.Single-chip microcomputer in the LED control device knows that from optical cable tail optical fiber encoding identification device tail optical fiber inserts state in current each tail optical fiber slot 22, from communication control unit, know the information such as scheme of arrangement of network resource server to each tail optical fiber, and judge right lighting mode of each LED lamp or color in the distributing frame with this, and by decoder to the control led drive circuit, realize control to the LED lamp.
As shown in Figure 7, communication control unit is made of a single-chip microcomputer and network card chip, and single-chip microcomputer has two I/O interfaces to connect the single-chip processor i/o mouth of tail optical fiber identification module and LED control device respectively.Communication control unit is known the state and the tail optical fiber annexation of each tail optical fiber slot the network from optical cable tail optical fiber encoding identification device, and these data are sent to fiber resource management server 4 by network interface, fiber resource management server 4 also can be transmitted to the LED control device with LED control information etc. by communication control unit as required.Single-chip microcomputer in optical cable tail optical fiber encoding identification device, LED control device, the communication control unit can be selected in the common from the market model according to disposal ability needs, storage capacity, I/O interface quantity etc., as the AT89CXX series of Atmel, AT89Sxx series, AT89C20 series etc., on distributing frame, increase other miscellaneous function if desired, also can select processors such as the stronger ARM of function of use, OMAP.Encoder that uses in optical cable tail optical fiber encoding identification device and the LED control device or decoder can according to coding and decoding figure place needs, select plurality of chips to make up realization by using ready-made encoder chip and decoder chip.When real system is realized, may also need to increase some storage chips in optical cable tail optical fiber encoding identification device, LED control device, three modules of communication control unit with storage intermediate data elevator system performance, also can further integrate as required simultaneously, to reduce use and simplification circuit single-chip microcomputer.
Optical cable is with to have the annexation that optical fiber is connected between the fibre distribution frame of automatically identification and management function more fixing, its corresponding relation all may remain unchanged in the whole life of optical cable, record each fibre core of optical cable in the fiber resource management server 4 and have optical fiber and be connected the corresponding relation of each optical cable tail optical fiber interface in the fibre distribution frame of automatically identification and management function, and the corresponding relation of the numbering of the tail optical fiber that obtains from distributing frame control module 3 of utilization and tail optical fiber interface matches out optical fibre channel end to end automatically.When the fine jumper connection of the enterprising end of line of fibre distribution frame with the automatic identification of optical fiber connection and management function changes, fiber resource management server 4 can reading by corresponding 3 pairs of tail optical fiber states of distributing frame control module, find states such as tail optical fiber is removed, insertion, automatically finish optical line by change, do not need artificial intervention fully.Final fiber resource management server 4 can dock with the network management system of equipment, the optical line that realizes equipment automatically by management.
Current each common carrier optical cable and optical fibres use amount is increasing, fiber cable network is increasingly sophisticated, for certain business often need be carried out the jumper connection operation on a plurality of fibre distribution frames, and at present to the management of fiber resource still by manual record and input system, not only the data typing is untimely, manual record and typing also have higher mistake possibility, make that the data of fiber resource system are with a low credibility, the decision-making foundation that provides for operator is provided, thereby can the investment and the business development of operator be impacted.
The invention provides thinking and method that a kind of optical fiber connects automatic identification and management system; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (10)
1. an optical fiber connects automatic identification and management system, it is characterized in that, comprises and the unique corresponding memory of optical cable tail optical fiber, the read write line adaptive with described memory, optical cable tail optical fiber encoding identification device;
Comprise the uniqueness coding corresponding in the described memory with an optical cable tail optical fiber;
Described optical cable tail optical fiber encoding identification device connects read write line, is used for carrying out exchanges data with read write line.
2. a kind of optical fiber according to claim 1 connects automatic identification and management system, it is characterized in that, comprises optical fiber splice, and described optical cable tail optical fiber and memory are arranged on the optical fiber splice.
3. a kind of optical fiber according to claim 1 and 2 connects automatic identification and management system, it is characterized in that, comprises the tail optical fiber slot that is used to insert the optical cable tail optical fiber, the described read write line of integrated setting in the tail optical fiber slot.
4. a kind of optical fiber according to claim 1 and 2 connects automatic identification and management system, it is characterized in that, described optical cable tail optical fiber encoding identification device comprises the code identification single-chip microcomputer, described code identification single-chip microcomputer connects code identification encoder, code identification decoder and each read write line respectively, described encoder connects switch arrays, and described decoder connects each read write line.
5. a kind of optical fiber according to claim 4 connects automatic identification and management system, it is characterized in that, comprises the status indicator lamp corresponding with the optical cable tail optical fiber, and described status indicator lamp connects the LED control device, is used to control the show state of indicator light.
6. a kind of optical fiber according to claim 5 connects automatic identification and management system, it is characterized in that, described LED control device comprises LED control single chip computer, decoder and the led drive circuit that is connected with decoder, and described status indicator lamp connects led drive circuit.
7. a kind of optical fiber according to claim 1 and 2 connects automatic identification and management system, it is characterized in that, comprise the communication control unit that is connected with optical cable tail optical fiber encoding identification device, described communication control unit comprises the Control on Communication single-chip microcomputer, and described letter control single chip computer connects a network interface by a network card chip.
8. a kind of optical fiber according to claim 1 and 2 connects automatic identification and management system, it is characterized in that, described optical cable tail optical fiber is more than one, all unique corresponding memory of each optical cable tail optical fiber.
9. a kind of optical fiber according to claim 3 connects automatic identification and management system, it is characterized in that, described tail optical fiber slot is more than one, in each tail optical fiber slot all integrated setting a described read write line is arranged.
10. a kind of optical fiber according to claim 8 connects automatic identification and management system, it is characterized in that, described read write line is more than one, the memory of respectively corresponding each optical cable tail optical fiber.
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| CN102346860A (en) * | 2011-09-16 | 2012-02-08 | 烽火通信科技股份有限公司 | Method for wiring and managing optical fiber with electronic and manual dual-identification capabilities |
| CN102636849A (en) * | 2012-03-29 | 2012-08-15 | 浙江万马集团电子有限公司 | Intelligent optical fiber management system |
| CN102664680A (en) * | 2012-03-31 | 2012-09-12 | 烽火通信科技股份有限公司 | Circuit capable of realizing passivity of intelligent optical distribution interface board in the machine disc enabling way |
| CN102665143A (en) * | 2012-04-13 | 2012-09-12 | 烽火通信科技股份有限公司 | Circuit for realizing passivity of intelligent photo wiring interface plate in port enabling way |
| CN102890319A (en) * | 2012-10-31 | 2013-01-23 | 深圳市特发信息光网科技股份有限公司 | Optical fiber management box and optical fiber distribution frame |
| CN104539365A (en) * | 2012-04-18 | 2015-04-22 | 烽火通信科技股份有限公司 | Small smart optical wiring device |
| CN108174314A (en) * | 2018-01-18 | 2018-06-15 | 华信咨询设计研究院有限公司 | A kind of light hands over network service dispatching method and device |
| CN109077802A (en) * | 2018-09-11 | 2018-12-25 | 中聚科技股份有限公司 | A kind of laser surgey fibre-optical splice with use state storage and indication device |
| CN109873670A (en) * | 2017-12-01 | 2019-06-11 | 爱斯福公司 | Method and system for multi fiber wireline test |
| CN113852422A (en) * | 2021-11-16 | 2021-12-28 | 中国电信股份有限公司 | System and method for identifying connection relationship between equipment port and optical cable core |
| US11340137B2 (en) | 2017-12-01 | 2022-05-24 | Exfo Inc. | Method and system for multi-link connection testing |
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| CN102346860A (en) * | 2011-09-16 | 2012-02-08 | 烽火通信科技股份有限公司 | Method for wiring and managing optical fiber with electronic and manual dual-identification capabilities |
| CN102346860B (en) * | 2011-09-16 | 2013-10-02 | 烽火通信科技股份有限公司 | Method for wiring and managing optical fiber with electronic and manual dual-identification capabilities |
| CN102636849A (en) * | 2012-03-29 | 2012-08-15 | 浙江万马集团电子有限公司 | Intelligent optical fiber management system |
| CN102636849B (en) * | 2012-03-29 | 2014-08-06 | 万马电子医疗有限公司 | Intelligent optical fiber management system |
| CN102664680A (en) * | 2012-03-31 | 2012-09-12 | 烽火通信科技股份有限公司 | Circuit capable of realizing passivity of intelligent optical distribution interface board in the machine disc enabling way |
| WO2013143251A1 (en) * | 2012-03-31 | 2013-10-03 | 烽火通信科技股份有限公司 | Circuit for realizing passivation of intelligent optical distribution interface disc in machine disc enable manner |
| CN102664680B (en) * | 2012-03-31 | 2014-12-03 | 烽火通信科技股份有限公司 | Circuit capable of realizing passivity of intelligent optical distribution interface board in the machine disc enabling way |
| CN102665143A (en) * | 2012-04-13 | 2012-09-12 | 烽火通信科技股份有限公司 | Circuit for realizing passivity of intelligent photo wiring interface plate in port enabling way |
| CN104539365B (en) * | 2012-04-18 | 2017-02-22 | 烽火通信科技股份有限公司 | Small smart optical wiring device |
| CN104539365A (en) * | 2012-04-18 | 2015-04-22 | 烽火通信科技股份有限公司 | Small smart optical wiring device |
| CN102890319A (en) * | 2012-10-31 | 2013-01-23 | 深圳市特发信息光网科技股份有限公司 | Optical fiber management box and optical fiber distribution frame |
| CN109873670A (en) * | 2017-12-01 | 2019-06-11 | 爱斯福公司 | Method and system for multi fiber wireline test |
| US10591385B2 (en) | 2017-12-01 | 2020-03-17 | Exfo Inc. | Method and system for multi-fiber cable testing |
| US11340137B2 (en) | 2017-12-01 | 2022-05-24 | Exfo Inc. | Method and system for multi-link connection testing |
| CN109873670B (en) * | 2017-12-01 | 2022-11-11 | 爱斯福公司 | Method and system for multi-fiber cable testing |
| CN108174314A (en) * | 2018-01-18 | 2018-06-15 | 华信咨询设计研究院有限公司 | A kind of light hands over network service dispatching method and device |
| CN109077802A (en) * | 2018-09-11 | 2018-12-25 | 中聚科技股份有限公司 | A kind of laser surgey fibre-optical splice with use state storage and indication device |
| CN113852422A (en) * | 2021-11-16 | 2021-12-28 | 中国电信股份有限公司 | System and method for identifying connection relationship between equipment port and optical cable core |
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Application publication date: 20110907 |