CN109951231B - Communication system from optical fiber to desktop - Google Patents
Communication system from optical fiber to desktop Download PDFInfo
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- CN109951231B CN109951231B CN201910210085.9A CN201910210085A CN109951231B CN 109951231 B CN109951231 B CN 109951231B CN 201910210085 A CN201910210085 A CN 201910210085A CN 109951231 B CN109951231 B CN 109951231B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 42
- 238000004891 communication Methods 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims abstract description 86
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 238000007664 blowing Methods 0.000 claims description 18
- 238000013461 design Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000013308 plastic optical fiber Substances 0.000 claims description 3
- 230000006855 networking Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
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Abstract
The invention discloses a communication system from optical fibers to a desktop, which comprises an OLT device, a beam splitter, a fiber splitting module and an ONU device which are connected in sequence, wherein the beam splitter is arranged at the near end of the OLT device, and the beam splitter is connected with the fiber splitting module at the far end through a micro-pipe micro-cable; the first fiber dividing module is connected with the ONU equipment through a micro-pipe micro-cable; the micro-tube micro-cable is a single-core or multi-core optical fiber micro-cable arranged in the micro-tube; the downlink interface of the optical splitter and the uplink interface of the ONU equipment are connected in one-to-one optical fiber by reasonably distributing networking topological structures of the OLT equipment, the optical splitter, the optical fiber splitting module and the ONU equipment and corresponding connecting cable types.
Description
Technical Field
The invention belongs to the field of optical fiber communication, and particularly relates to a communication system from an optical fiber to a desktop and a method thereof.
Background
The optical fiber to desktop (Fiber To The Desktop, FTTD) uses optical fibers to replace traditional network wires (such as class 6 wires) to extend the network to the user terminal, so that the user terminal realizes network access through the optical fibers in the whole process. FTTD access technology is a network technology that has emerged in recent years and has been widely used abroad. With the continuous decrease in prices for optical fibers and fiber access devices, FTTDs are also becoming increasingly widely used in China, such as in gardens, hospitals, government buildings, commercial buildings, schools, hotels, and the like.
The existing FTTD solution is realized through the OLT equipment, the optical splitter and the ONU equipment, and the connecting cables are mostly common optical cables or rubber-insulated wire optical cables, however, the solution often has large-angle bending and forced stretching in the wiring process, the loss of optical fibers is easy to cause, the wiring cost is increased, and the later maintenance is also not facilitated; meanwhile, if the optical splitters are placed in a corridor or a floor, terminal equipment connected with the downlink port of the same optical splitter will have to be connected with the same PON port but cannot be connected with different PON ports, so that the flexibility of network configuration is greatly reduced; in addition, when the common optical cable or the rubber-insulated wire optical cable is connected with the ONU, a section of optical fiber is always exposed, and a series of problems such as fiber breakage, signal conversion faults and the like caused by external acting force are extremely easy to occur.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides an optical fiber-to-desktop communication system, which realizes one-to-one optical fiber direct connection of a downlink interface of an optical splitter and an uplink interface of ONU equipment by reasonably distributing networking topological structures of the OLT equipment, the optical splitter module and the ONU equipment and corresponding connecting cable types.
To achieve the above object, according to one aspect of the present invention, there is provided an optical fiber-to-desktop communication system including an OLT apparatus, an optical splitter, a fiber splitting module, and an ONU apparatus connected in sequence,
the optical splitter is arranged at the near end of the OLT equipment and is connected with the fiber splitting module through a micro cable; the fiber dividing module is connected with the ONU equipment through a micro cable; the micro cable is a single-core or multi-core optical fiber micro cable; therefore, one-to-one optical fiber direct connection between the downlink interface of the optical splitter and the uplink interface of the ONU equipment is realized through the micro cable.
As a further improvement of the invention, the micro cable bundle is sleeved in the micro tube.
As a further improvement of the invention, the microtubes are partially or wholly pre-embedded according to a preset routing design.
As a further improvement of the invention, the micro cable bundling sleeve is sleeved on the micro pipe by utilizing an air blowing technology.
As a further improvement of the invention, the fiber splitting module is a single-stage fiber splitting structure formed by connecting one or more fiber splitting devices in parallel, or is a hierarchical structure formed by cascading a plurality of sub-fiber splitting modules, and the sub-fiber splitting modules are single-stage fiber splitting structures formed by connecting one or more fiber splitting devices in parallel.
As a further improvement of the present invention, ONU equipment may be installed in the 86 back box.
As a further improvement of the invention, the ONU device is located at the near end of the application terminal or integrated with the application terminal.
As a further improvement of the invention, the application terminal is any one or more of an access camera, an active sound box, a computer, an access controller and DDC equipment.
As a further improvement of the present invention, the micro cables of the ONU devices connected to the same application terminal are converged and then connected to the same PON port through an optical splitter.
As a further improvement of the present invention, the splitting ratio of the splitter is configured according to the bandwidth required by the application terminal to which the ONU device is connected.
As a further improvement of the invention, the micro-cables connecting between the optical splitter and the fiber splitting module and between the fiber splitting module and the ONU device can be replaced partially or totally by one or more combinations of rubber-insulated optical cables or plastic optical fibers.
As a further improvement of the invention, the OLT is arranged in a telecom T3-level machine room, the fiber splitting module is of a direct-connection two-level structure, and the optical splitter is connected with the fiber splitting module by adopting a star topology structure.
In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:
according to the optical fiber-to-desktop communication system, the networking topological structures of the OLT equipment, the optical splitters, the optical splitting modules and the ONU equipment and the corresponding connection cable types are reasonably distributed, only one-level optical splitting mode is adopted in the scheme, the down link interface of the optical splitters is directly connected with the uplink interface of the ONU equipment one-to-one optical fiber, so that routing equipment or multi-level optical splitter equipment of a network node is omitted, the reliability of the network is prevented from being influenced by node equipment faults, and meanwhile, network fault investigation is simplified and experience of a terminal user is improved.
According to the communication system from the optical fiber to the desktop, the single-core or multi-core optical fiber micro cable arranged in the micro pipe is selected, the direct-melting type fiber splitting box is utilized for splitting the optical fiber, and the micro pipe is partially or wholly embedded in a building wall according to the preset wiring design requirement, so that the joint of the micro cable and the single-port ONU equipment packaged by the 86 bottom box is embedded in the wall, the external optical fiber of the ONU equipment is not exposed, the reliability of the connection between the ONU equipment and the external optical fiber is effectively protected, and the communication system is attractive in use.
According to the communication system from the optical fiber to the desktop, when a section of micro cable fails to cause the section of micro cable line to be not in communication, the section of micro cable can be blown out of the corresponding micro pipe by the air blowing technology, and the corresponding micro cable is blown out by the air blowing technology, so that the fault detection time is greatly reduced, and meanwhile, the link of optical fiber fusion is omitted, so that the later maintenance cost is saved.
The optical fiber-to-desktop communication system utilizes a plurality of OLT devices and multi-stage fiber splitting modules, and realizes reasonable distribution and management of intelligent park network terminals by reasonably placing the fiber splitting modules and machine room configuration.
According to the communication system from the optical fiber to the desktop, the micro cables of the ONU equipment connected with the same application terminals are converged and then connected to the same PON port through the optical splitter, and meanwhile, the optical splitting ratio of the optical splitter can be flexibly set according to the bandwidth requirement of the access application terminal, so that the output bandwidth and the input bandwidth of the OLT are reasonably distributed and utilized.
Drawings
Fig. 1 is a schematic diagram of a fiber-to-desktop communication system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other. The present invention will be described in further detail with reference to the following embodiments.
Micro-cables: the optical transmission index of the miniature optical cable is the same as that of the common optical cable, and the miniature optical cable is called as the miniature cable because the outer diameter of the miniature optical cable is thinner than that of the common optical cable.
Fig. 1 is a schematic diagram of a fiber-to-desktop communication system according to an embodiment of the present invention. The system comprises an OLT device, an optical splitter, a first fiber splitting module and an ONU device which are sequentially connected, wherein the OLT device is used for being connected with a core switch, the optical splitter is arranged at the near end of the OLT device, the near end of the OLT device is in a distance range capable of being directly connected with the optical splitter by fiber hopping, the OLT device is connected with the optical splitter by fiber hopping, and as a preferable scheme, the OLT device and the optical splitter are arranged in a machine room or other facilities for accommodating the OLT device, and the optical splitter is connected with the fiber splitting module by a micro cable; the fiber splitting module is connected with the ONU equipment through a micro cable; the micro cable is a single-core or multi-core optical fiber micro cable; therefore, one-to-one optical fiber direct connection between the downlink interface of the optical splitter and the uplink interface of the ONU equipment is realized through the micro cable. Of course, the micro cable between the connection optical splitter and the optical fiber splitting module and between the optical fiber splitting module and the ONU device can be partially or completely replaced by one or more combinations of rubber-covered optical cable or plastic optical fiber, so as to realize one-to-one optical fiber connection between the output end of the optical splitter and the ONU device. The micro cable cluster is sleeved in the micro pipe, and the micro pipe is partially or wholly embedded according to a preset wiring design.
For a complex network, only a one-level light splitting mode is adopted in the scheme, and the down link interface of the light splitter is directly connected with the uplink interface of the ONU equipment in one-to-one mode, so that the routing equipment or the multi-level light splitter equipment of a network node is omitted, the reliability of the network is prevented from being influenced by the fault of the node equipment, and meanwhile, the network fault investigation is simplified, and the experience of a terminal user is improved.
As a preferred technical scheme, the optical splitter is disposed at the near end of the OLT device, so that the PON port of the OLT and the corresponding split ratio thereof can be reasonably configured, that is, the split ratio of the PON port of the OLT device corresponding to the interface thereof can be divided according to the service type of the ONU device downstream application terminal, thereby realizing reasonable distribution and management of the network terminal of the communication system.
As an example, the ONU device is preferably a single-port ONU device encapsulated by an 86-base box, and different application terminals such as a camera, an active speaker, a computer, an access controller, or a DDC device can be accessed according to the application requirements of the ONU device.
Preferably, the micro cables of the ONU equipment capable of being connected with a plurality of same application terminals are converged and then connected to the same PON port through the optical splitter, and as the down link interface of the optical splitter is directly connected with the up link interface of the ONU equipment in one-to-one optical fibers, the bandwidth required by each application terminal is different, the optical splitting ratio of the optical splitter can be flexibly set according to the bandwidth requirement of the access application terminal, and the output bandwidth and the input bandwidth of the OLT are reasonably distributed and utilized, so that the bandwidth utilization rate of the OLT is improved, and the monitoring equipment or the upstream network equipment is convenient for corresponding management.
Preferably, the ONU device is disposed at a near end of the application terminal or integrated with the application terminal, and the near end of the application terminal, that is, a distance range where the connection line between the application terminal and the connection device is directly connected.
As a preferred embodiment of the invention, the system can be used for realizing the laying of the all-optical network optical cable in the intelligent building, in particular, the fiber splitting module can be placed in a sub-core area of the building, preferably, the fiber splitting module is placed in a weak electric well of each floor of the building, the fiber splitting equipment can adopt a direct-melting fiber splitting box, the microtubes can be partially or wholly pre-buried in a wall body of the building or other facilities according to the preset wiring design, and in the process of laying the network, the micro cables can be blown into a designated position by utilizing a plurality of cable blowing machines according to the engineering requirement, the laying length of each cable blowing machine is 1-2 km, and the total laying length can reach 6 km or even longer. The process of blowing the micro cable into the designated position by the cable blowing machine comprises the following steps: the communication cable is pushed into the pipeline by using a mechanical propeller, meanwhile, the air compressor conveys strong air flow into the pipeline, the high-speed flowing air forms forward thrust on the surface of the optical cable to promote the optical cable to advance, and the end of the optical cable is open, so that no stress exists on the end of the optical cable, the optical cable smoothly advances in the pipeline along the relief or the change of the direction, and after the optical cable is laid, the optical cable is loosely stopped at the bottom of the pipeline, thereby being beneficial to prolonging the service life of the optical cable. The optical cable is laid in an air blowing mode, so that the effects of high pipeline utilization rate, simplicity, convenience and rapidness in construction and convenience in upgrading and maintenance can be achieved.
Meanwhile, when a section of micro cable breaks down to cause that the section of micro cable circuit is not connected, the section of micro cable can be blown out of a corresponding micro pipe by an air blowing technology, and the corresponding micro cable is blown out by the air blowing technology, so that the fault checking time is greatly shortened, and meanwhile, the link of optical fiber welding is omitted, so that the later maintenance cost is saved.
Meanwhile, the microtubes can be partially or wholly embedded in a building wall or other settings according to the preset wiring design requirement, so that the connection part of the micro cable and the single-port ONU equipment packaged by the 86 bottom box is embedded in the wall, and as the ONU of the single-port ONU equipment packaged by the 86 bottom box is sunk to a panel, like a common 86 switch is embedded in the wall, the surface of the wall is only 86 panel, so that the external optical fiber of the ONU equipment is not exposed, thereby effectively protecting the reliability of the connection of the ONU equipment and the external optical fiber and being attractive in use.
As a preferred embodiment of the invention, the fiber splitting module is a single-stage fiber splitting structure formed by connecting one or more fiber splitting devices in parallel, or is a hierarchical structure formed by cascading a plurality of sub-fiber splitting modules, and the sub-fiber splitting module is a single-stage fiber splitting structure formed by connecting one or more fiber splitting devices in parallel. Specifically, according to the application scene of the system, the corresponding area is divided into a plurality of levels of star-shaped topological structures, and the sub-fiber dividing modules are respectively positioned at all levels of aggregation nodes of the star-shaped topological structures.
As an example, the communication system of the present invention may be used to implement intelligent park communication, where the number of OLT devices is multiple, the OLT and the optical splitter are preferably disposed in a machine room, the machine room is a telecommunication T3-level machine room, the optical splitting module is in a directly connected secondary structure, where the first-level sub-optical splitting module is located in a preset zone of the park, the preset zone of the park is a small machine room or a weak electric well located at a core position of a sub-area of the park, the optical splitter is connected with the optical splitting module by adopting a star topology structure, the communication system further includes a second-level sub-optical splitting module, the first-level sub-optical splitting module is connected with the ONU device through the second-level sub-optical splitting module, the second-level sub-optical splitting module is connected with the ONU device through a micro cable, the micro cable is bundled in a micro-pipe, the second-level sub-optical splitting module is disposed in a sub-core region of a building, preferably, the second-level sub-optical splitting module is disposed in a weak electric well of each layer building, and the sub-optical splitting module is in parallel with one or more single-level sub-optical splitting devices, as a preferred embodiment, and the sub-optical splitting device is a straight fiber box.
For a complex network, only a one-level light splitting mode is adopted in the scheme, and the down link interface of the light splitter is directly connected with the uplink interface of the ONU equipment in one-to-one mode, so that the routing equipment or the multi-level light splitter equipment of a network node is omitted, the reliability of the network due to the failure of the node equipment is avoided, and meanwhile, the network failure detection is simplified, and the experience of a terminal user is improved.
Specifically, the microtubes are partially or wholly pre-buried according to a preset wiring design, and in the process of laying a network, a plurality of cable blowing machines can be utilized to blow micro cables into a designated position according to engineering requirements, the laying length of each cable blowing machine is 1-2 km, and the total laying length can reach 6 km or even longer. The process of blowing the micro cable into the designated position by the cable blowing machine comprises the following steps: the communication cable is pushed into the pipeline by using a mechanical propeller, meanwhile, the air compressor conveys strong air flow into the pipeline, the high-speed flowing air forms forward thrust on the surface of the optical cable to promote the optical cable to advance, and the end of the optical cable is open, so that no stress exists on the end of the optical cable, the optical cable smoothly advances in the pipeline along the relief or the change of the direction, and after the optical cable is laid, the optical cable is loosely stopped at the bottom of the pipeline, thereby being beneficial to prolonging the service life of the optical cable. The optical cable is laid in an air blowing mode, so that the effects of high pipeline utilization rate, simplicity, convenience and rapidness in construction and convenience in upgrading and maintenance can be achieved.
Meanwhile, when a section of micro cable breaks down to cause that the section of micro cable circuit is not connected, the section of micro cable can be blown out of a corresponding micro pipe by an air blowing technology, and the corresponding micro cable is blown out by the air blowing technology, so that the fault checking time is greatly shortened, and meanwhile, the link of optical fiber welding is omitted, so that the later maintenance cost is saved.
As an example, the ONU device is preferably a single-port ONU device encapsulated by an 86-base box, and different application terminals such as a camera, an active speaker, a computer, an access controller, or a DDC device can be accessed according to the application requirements of the ONU device.
Preferably, the micro cables of the ONU equipment capable of being connected with a plurality of same application terminals are converged and then connected to the same PON port through the optical splitter, and as the down link interface of the optical splitter is directly connected with the up link interface of the ONU equipment in one-to-one mode and the required bandwidth of each application terminal is different, the light splitting ratio of the optical splitter can be flexibly set according to the bandwidth requirement of the access application terminal, thereby reasonably distributing and utilizing the output bandwidth and the input bandwidth of the OLT, improving the bandwidth utilization rate of the OLT and being convenient for corresponding management of monitoring equipment or upstream network equipment of the whole park.
Preferably, the ONU device is disposed at a near end of the application terminal or integrated with the application terminal, and the near end of the application terminal, that is, a distance range where the connection line between the application terminal and the connection device is directly connected.
The microtubes are partially or wholly embedded according to a preset wiring design, so that the connection part of the micro cable and the single-port ONU equipment packaged by the 86 bottom box is buried in the wall body, and as the ONU of the single-port ONU equipment packaged by the 86 bottom box is sunk to the panel, like a common 86 switch is embedded in the wall body, the surface of the wall body is only 86 panel, so that the external optical fiber of the ONU equipment is not exposed, the connection reliability of the ONU equipment and the external optical fiber is effectively protected, and the use is attractive.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The optical fiber-to-desktop communication system comprises an OLT device, an optical splitter, an optical fiber splitting module and an ONU device which are connected in sequence, and is characterized in that,
the optical splitter is arranged at the near end of the OLT equipment, the OLT equipment is connected with the optical splitter through a jump fiber, and the optical splitter is connected with the optical splitter module through a micro cable; the fiber splitting module is connected with the ONU equipment through a micro cable; the micro cable is a single-core or multi-core optical fiber micro cable; thereby realizing one-to-one optical fiber direct connection between the downlink interface of the optical splitter and the uplink interface of the ONU equipment through the micro cable;
the ONU equipment is arranged at the near end of the application terminal or integrated with the application terminal into a whole;
the application terminal is a plurality of cameras, active sound boxes, computers, access controllers and DDC equipment;
micro cables of ONU equipment connected with a plurality of same application terminals are converged and then connected to the same PON port through an optical splitter;
the beam splitting ratio of the beam splitter is configured according to the bandwidth required by the application terminal connected with the ONU equipment.
2. The fiber-to-desktop communication system of claim 1, wherein the micro-cable bundle is encased in a microtube.
3. A fiber to the desktop communication system of claim 2, wherein the microtubes are partially or wholly pre-embedded according to a pre-set cabling design.
4. The fiber-to-desktop communication system of claim 2, wherein the micro-cable cluster is implemented in a microtube using an air-blowing technique.
5. A fiber to desk communication system as claimed in any one of claims 1 to 4, wherein the fiber splitting module is a single stage fiber splitting structure formed by one or more fiber splitting devices connected in parallel, or is a hierarchical structure formed by cascading a plurality of sub-fiber splitting modules, and the sub-fiber splitting modules are single stage fiber splitting structures formed by one or more fiber splitting devices connected in parallel.
6. A fiber to desk communication system as recited in any of claims 1 to 4, wherein said ONU devices are mounted in a 86-base box.
7. A fiber to desk top communication system as recited in any of claims 1 to 4, wherein the micro-cables between the connection splitters and the splitting modules and between the splitting modules and the ONU devices are replaced in part or in whole by one or more of flex cables or plastic optical fibers.
8. The optical fiber to desktop communication system of any of claims 1-4, wherein the OLT is disposed in a telecommunication T3-stage room, the fiber splitting module is a directly connected two-stage structure, and the optical splitter is connected to the fiber splitting module by adopting a star topology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910210085.9A CN109951231B (en) | 2019-03-19 | 2019-03-19 | Communication system from optical fiber to desktop |
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| CN201910210085.9A CN109951231B (en) | 2019-03-19 | 2019-03-19 | Communication system from optical fiber to desktop |
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| CN109951231A CN109951231A (en) | 2019-06-28 |
| CN109951231B true CN109951231B (en) | 2024-04-02 |
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Denomination of invention: A Fiber to Desktop Communication System Granted publication date: 20240402 Pledgee: Bank of Hankou Limited by Share Ltd. Financial Services Center Pledgor: WUHAN YIWANG WANLIAN TECHNOLOGY Co.,Ltd. Registration number: Y2024980039086 |