CN112261515A - Optical fiber breakpoint splicing method based on medium-voltage carrier - Google Patents
Optical fiber breakpoint splicing method based on medium-voltage carrier Download PDFInfo
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- CN112261515A CN112261515A CN202011150902.5A CN202011150902A CN112261515A CN 112261515 A CN112261515 A CN 112261515A CN 202011150902 A CN202011150902 A CN 202011150902A CN 112261515 A CN112261515 A CN 112261515A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
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- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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Abstract
A fiber break point splicing method based on medium-voltage carrier waves is characterized in that a medium-voltage communication module host and a slave are respectively installed at the upstream and downstream of a fiber break point based on medium-voltage power line carrier waves under the condition that the existing fiber line is difficult to repair due to the fact that the existing fiber line is obstructed in the actual laying process of the fiber line and cannot be laid or the laid fiber is damaged under the action of external force, two sections of fibers are bridged through the medium-voltage carrier waves, and the downstream data are communicated with a master station through the fiber and the medium-voltage carrier waves. The method does not need to replace the optical fiber or dissolve the optical fiber again, has lower cost, does not need to independently erect a communication link, and is simple and convenient to operate.
Description
Technical Field
The invention particularly relates to the technical field of power line carriers, in particular to an optical fiber breakpoint splicing method based on medium-voltage carriers.
Background
With the development of the power industry, the national requirements on automation in the aspects of acquisition and power distribution of the power industry are higher and higher, the optical fiber communication technology becomes one of the main pillars of modern communication, the optical fiber communication broadband information has large capacity and low loss, can be transmitted in a long distance, has stronger anti-electromagnetic interference capability and stronger safety performance and confidentiality, and plays a role in light weight in the modern power grid.
However, in the actual laying process of the optical fiber, the situation that the laid optical fiber cannot be laid or the laid optical fiber is damaged under the action of external force and is difficult to repair is encountered. After being damaged, two measures are generally taken to solve the problem of communication incapability: 1. splicing the optical fibers, wherein each core in the spliced optical fibers needs to be in one-to-one correspondence to the original optical fibers according to the original matching relationship, so that the operation is inconvenient; 2. the method of re-laying the optical fibre is costly and requires significant labour and time costs.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides an optical fiber breakpoint splicing method based on medium-voltage carrier waves, aiming at realizing the connection between downstream data and a main station and recovering communication under the condition that optical fibers are difficult to repair.
In order to achieve the purpose, the invention provides an optical fiber breakpoint splicing method based on a medium-voltage carrier, which specifically comprises the following steps:
step 1: the power distribution terminal accesses the Optical fiber link through an ONU (Optical Network Unit);
step 2: an ONU (Optical Distribution Network) of each node is connected with an Optical fiber through an ODN (Optical Distribution Network) and enters a transformer substation, and an OLT (Optical Line Terminal) matched with the ONU is accessed;
and step 3: each OLT in the transformer substation is finally accessed to a distribution automation main station through a distribution network communication access platform to realize the operation of the main station on data acquisition, signal acquisition and remote control commands of a terminal;
and 4, step 4: after the optical fiber is broken at a certain position due to factors such as external force damage and the like, the medium-voltage carrier technology is utilized, and the cable or overhead line between the optical fiber breakpoints is used as a communication medium, so that normal data interaction between the downstream data of the optical fiber breakpoints and the main station is realized, and the optical fiber breakpoint splicing is completed.
Furthermore, the breakpoint splicing in the step 4 includes breakpoint splicing of the head end of the optical fiber, the middle end of the optical fiber and the tail end of the optical fiber under three scenes.
Further, the method for splicing the end break points in the optical fiber comprises the following steps:
step 1: installing an OLT at the ONU of the first node downstream of the optical fiber breakpoint to realize the matching of the downstream ONU and the OLT through the optical fiber, wherein the OLT is used as an optical line terminal of all the downstream ONUs;
step 2: an OLT at a first node downstream of the optical fiber breakpoint is connected to a slave of the medium-voltage communication module through a network cable, and the slave couples signals to a power line through a coupler to realize the connection of a downstream optical fiber channel and a medium-voltage carrier channel;
and step 3: the medium-voltage communication module slave couples signals to a power line through a coupler;
and 4, step 4: at the ONU of the first node at the upstream of the optical fiber breakpoint, the coupler is connected with the medium-voltage communication module host through a signal line, the medium-voltage communication module host is connected with the ONU through a network cable, the connection between a medium-voltage carrier channel and the upstream optical fiber channel is realized, and the coupler couples signals into a cable or an overhead line circuit to complete the optical fiber breakpoint splicing and realize the communication.
Further, in the break-point splicing of the middle end of the optical fiber, when the power line in the step 3 is a cable line, an inductive coupler is used, the inductive coupler couples a signal to a cable shielding layer, and the signal is communicated through the cable shielding layer; when the power line is an overhead line, a capacitive coupler is used, and couples a signal to a phase line to realize signal transmission.
Furthermore, the breakpoint of the head end of the optical fiber is continuously connected, when the optical fiber communication enters a transformer substation to be laid, the optical fiber communication cannot be laid due to obstacles, the optical fiber communication can be accessed into an optical fiber channel in a medium-voltage carrier communication mode, a medium-voltage communication module host is installed beside the OLT in the transformer substation, a coupler is installed in a switch cabinet of a corresponding line, a medium-voltage communication module slave and a coupler are installed at a first node outside the substation, the medium-voltage communication module slave is connected with the OLT through a network cable, the medium-voltage carrier channel is connected with the optical fiber channel, and therefore normal data interaction between the downstream data of the optical fiber breakpoint and
furthermore, the breakpoint of the optical fiber tail end is connected, the tail end terminal can be connected with the slave of the medium-voltage communication module through a network cable and directly goes upward through a medium-voltage carrier, the host of the medium-voltage communication module is connected with the ONU at the position of the node at the tail end of the optical fiber through the network cable and is accessed into an optical fiber channel, and normal data interaction between downstream data of the optical fiber breakpoint and the master station is realized.
Further, the power distribution terminal comprises a DTU and an FTU.
The invention has the beneficial technical effects that:
1. the existing optical fiber channel is utilized, so that the optical fiber does not need to be replaced or welded again, and the cost is saved;
2. by utilizing a medium-voltage carrier technology, the existing cable or overhead line is used as a communication medium, a communication link does not need to be erected independently, and the operation is simple and convenient;
3. the communication channel of the cable or overhead line does not require special maintenance.
Drawings
Fig. 1 is a system architecture diagram of a medium voltage carrier-based optical fiber break-point splicing method according to the present invention.
Fig. 2 is an overall flowchart of the medium-voltage carrier-based optical fiber break-point splicing method according to the present invention.
Fig. 3 is a system architecture diagram of the break-point splicing of the middle end of the optical fiber according to the break-point splicing method of the optical fiber based on the medium-voltage carrier.
Fig. 4 is a flowchart of a fiber break-point splicing arrangement method based on medium-voltage carrier waves according to the present invention.
Fig. 5 is a system architecture diagram of the break-point splicing of the head end of the optical fiber according to the break-point splicing method of the optical fiber based on the medium-voltage carrier.
Fig. 6 is a system architecture diagram of the break-point splicing of the end of the optical fiber according to the break-point splicing method of the optical fiber based on the medium-voltage carrier.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, which is a system architecture diagram of the medium-voltage carrier-based Optical fiber breakpoint connection method of the present invention, a power Distribution terminal (FTU/DTU) accesses an Optical fiber communication link through an ONU (Optical Network Unit), the ONU of each node is connected to an Optical fiber through an ODN (Optical Distribution Network) and then the whole Optical fiber finally enters a substation, and accesses an OLT (Optical line termination) matched with the ONU, and the OLT in each station finally accesses a Distribution automation master station through a Distribution Network communication access platform to implement data acquisition, signal acquisition, and remote control command operations of the master station on the terminal.
Fig. 2 is a general flowchart of the medium-voltage carrier-based optical fiber break-point splicing method of the present invention, which includes the following specific steps:
step 1: the power distribution terminal accesses the Optical fiber link through an ONU (Optical Network Unit);
step 2: an ONU (Optical Distribution Network) of each node is connected with an Optical fiber through an ODN (Optical Distribution Network) and enters a transformer substation, and an OLT (Optical Line Terminal) matched with the ONU is accessed;
and step 3: each OLT in the transformer substation is finally accessed to a distribution automation main station through a distribution network communication access platform to realize the operation of the main station on data acquisition, signal acquisition and remote control commands of a terminal;
and 4, step 4: after the optical fiber is broken at a certain position due to factors such as external force damage and the like, the medium-voltage carrier technology is utilized, and the cable or overhead line between the optical fiber breakpoints is used as a communication medium, so that normal data interaction between the downstream data of the optical fiber breakpoints and the main station is realized, and the optical fiber breakpoint splicing is completed.
Fig. 3 is a system architecture diagram of the break-point splicing of the middle end of the optical fiber according to the break-point splicing method of the optical fiber based on the medium voltage carrier, in which an OLT is installed at an ONU at a position of a first node downstream of a break point of the optical fiber, the OLT is connected to a slave of a medium voltage communication module through a network cable, the slave is connected to a coupler through a signal cable, the coupler couples a signal to a power cable, a host of the medium voltage communication module and the coupler are installed at a position of the first node upstream of the break point of the optical fiber, and the connection at the break point of the middle end of the optical fiber is realized by using.
Fig. 4 shows a fiber breakpoint splicing arrangement flowchart of the medium-voltage carrier-based fiber breakpoint splicing method of the present invention, which specifically includes the following steps:
step 1: installing an OLT at the ONU of the first node downstream of the optical fiber breakpoint to realize the matching of the downstream ONU and the OLT through the optical fiber, wherein the OLT is used as an optical line terminal of all the downstream ONUs;
step 2: an OLT at a first node downstream of the fiber breakpoint is connected to a slave machine and a coupler of a medium-voltage communication module through a network cable, so that connection between a downstream fiber channel and a medium-voltage carrier channel is realized;
and step 3: the medium-voltage communication module slave couples signals to a power line through a coupler; (the cable line uses an inductive coupler which couples the signal to the cable shielding layer and communicates through the cable shielding layer; the overhead line uses a capacitive coupler which couples the signal to the phase line to realize the transmission of the signal)
And 4, step 4: at the ONU of the first node at the upstream of the optical fiber breakpoint, the coupler is connected with the medium-voltage communication module host through a signal line, the medium-voltage communication module host is connected with the ONU through a network cable, the connection between a medium-voltage carrier channel and the upstream optical fiber channel is realized, and the coupler couples signals into a cable or an overhead line circuit to complete the optical fiber breakpoint splicing and realize the communication.
As shown in fig. 5, which is a system architecture diagram of the break-point splicing of the fiber head end of the fiber break-point splicing method based on the medium-voltage carrier wave according to the present invention, when the fiber communication enters a substation and cannot be laid, the fiber channel can be accessed by the medium-voltage carrier wave communication, a medium-voltage communication module host is installed beside an OLT in the substation, a coupler is installed in a switch cabinet of a corresponding line, a medium-voltage communication module slave and a coupler are installed at a first node downstream of the break-point of the fiber outside the substation, and the medium-voltage communication module slave and the OLT are connected by a network cable to realize the connection between the medium-voltage carrier channel and the fiber channel, so as to realize normal data interaction between the downstream data of the fiber break.
As shown in fig. 6, which is a system architecture diagram of the optical fiber end breakpoint splice of the medium-voltage carrier-based optical fiber breakpoint splice method of the present invention, the end terminal may be connected to the medium-voltage communication module slave through a network cable, and directly uplink through the medium-voltage carrier, and the medium-voltage communication module host is connected to the ONU at the endmost node position of the optical fiber through a network cable, and accesses to an optical fiber channel, so as to implement normal data interaction between the downstream data of the optical fiber breakpoint and the master station.
The above-mentioned embodiments are illustrative of the specific embodiments of the present invention, and are not restrictive, and those skilled in the relevant art can make various changes and modifications to the corresponding equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should be included in the scope of the present invention.
Claims (7)
1. A fiber break-point splicing method based on medium-voltage carriers is characterized by comprising the following specific working procedures:
step 1: the power distribution terminal accesses the Optical fiber link through an ONU (Optical Network Unit);
step 2: an ONU (Optical Distribution Network) of each node is connected with an Optical fiber through an ODN (Optical Distribution Network) and enters a transformer substation, and an OLT (Optical Line Terminal) matched with the ONU is accessed;
and step 3: each OLT in the transformer substation is finally accessed to a distribution automation main station through a distribution network communication access platform to realize the operation of the main station on data acquisition, signal acquisition and remote control commands of a terminal;
and 4, step 4: after the optical fiber is broken at a certain position due to factors such as external force damage and the like, the medium-voltage carrier technology is utilized, and the cable or overhead line between the optical fiber breakpoints is used as a communication medium, so that normal data interaction between the downstream data of the optical fiber breakpoints and the main station is realized, and the optical fiber breakpoint splicing is completed.
2. The method according to claim 1, wherein the step 4 comprises three scenarios, i.e., a break point at the head end of the optical fiber, a break point at the middle end of the optical fiber, and a break point at the tail end of the optical fiber.
3. The method according to claim 2, wherein the break-point splicing of the optical fiber is performed at the middle end of the optical fiber, and comprises the following steps:
step 1: installing an OLT at the ONU of the first node downstream of the optical fiber breakpoint to realize the matching of the downstream ONU and the OLT through the optical fiber, wherein the OLT is used as an optical line terminal of all the downstream ONUs;
step 2: an OLT at a first node downstream of the fiber breakpoint is connected to a slave machine and a coupler of the medium-voltage communication module through an optical fiber (which should be a network cable), so that the connection between a downstream optical fiber channel and a medium-voltage carrier channel is realized;
and step 3: the medium-voltage communication module slave couples signals to a power line through a coupler; (the cable line uses an inductive coupler which couples the signal to the cable shielding layer and communicates through the cable shielding layer; the overhead line uses a capacitive coupler which couples the signal to the phase line to realize the transmission of the signal)
And 4, step 4: at the ONU of the first node at the upstream of the optical fiber breakpoint, the coupler is connected with the medium-voltage communication module host through a signal line, the medium-voltage communication module host is connected with the ONU through a network cable, the connection between a medium-voltage carrier channel and the upstream optical fiber channel is realized, and the coupler couples signals into a cable or an overhead line circuit to complete the optical fiber breakpoint splicing and realize the communication.
4. The method according to claim 3, wherein in step 3, when the power line is a cable line, an inductive coupler is used, and the inductive coupler couples a signal to the cable shielding layer and communicates through the cable shielding layer; when the power line is an overhead line, a capacitive coupler is used, and couples a signal to a phase line to realize signal transmission.
5. The medium-voltage carrier-based optical fiber breakpoint continuous connection method according to claim 2, wherein the optical fiber head end is in breakpoint continuous connection, when optical fiber communication enters a substation for laying, the optical fiber communication cannot be laid due to a fault, the optical fiber channel can be accessed in a medium-voltage carrier communication mode, a medium-voltage communication module host is installed beside an OLT in the substation, a coupler is installed in a switch cabinet of a corresponding line, a medium-voltage communication module slave machine and a coupler are installed at a first node in the downstream of the optical fiber breakpoint downstream of the substation, the medium-voltage communication module slave machine is connected with the OLT through a network cable, connection between the medium-voltage carrier channel and the optical fiber channel is achieved, and accordingly normal data interaction between optical fiber breakpoint downstream data and a master station is achieved.
6. The method according to claim 2, wherein the optical fiber end is subjected to breakpoint splicing, an end terminal can be connected with a medium-voltage communication module slave through a network cable and directly goes upward through the medium-voltage carrier, a medium-voltage communication module host is connected with the ONU at the position of the endmost node of the optical fiber through the network cable, and is accessed to an optical fiber channel, so that normal data interaction between downstream data of the optical fiber breakpoint and a master station is realized.
7. The medium-voltage carrier-based optical fiber breakpoint connection method according to claim 1, wherein the power distribution terminal comprises a DTU and an FTU.
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| CN202011150902.5A CN112261515A (en) | 2020-10-24 | 2020-10-24 | Optical fiber breakpoint splicing method based on medium-voltage carrier |
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| CN202011150902.5A CN112261515A (en) | 2020-10-24 | 2020-10-24 | Optical fiber breakpoint splicing method based on medium-voltage carrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112994752A (en) * | 2021-02-03 | 2021-06-18 | 青岛鼎信通讯股份有限公司 | Optical signal communication breakpoint connection method based on medium-voltage carrier communication |
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