CN111327974A - Seabed observation network redundancy system based on ring network topology structure and use method - Google Patents
Seabed observation network redundancy system based on ring network topology structure and use method Download PDFInfo
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- CN111327974A CN111327974A CN202010147046.1A CN202010147046A CN111327974A CN 111327974 A CN111327974 A CN 111327974A CN 202010147046 A CN202010147046 A CN 202010147046A CN 111327974 A CN111327974 A CN 111327974A
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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
- H04Q11/0005—Switch and router aspects
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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
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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
- H04Q2011/0079—Operation or maintenance aspects
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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
- H04Q2011/009—Topology aspects
- H04Q2011/0092—Ring
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Abstract
The invention relates to the technical field of ocean observation systems, and discloses a submarine observation network redundancy system based on a ring network topology structure and a using method thereof, the submarine observation network redundancy system comprises a shore-end switch, the output end of the shore-end switch is connected to a main connection box #1 switch #1 through a trunk optical cable (comprising two optical fibers), the other path is connected to a main connection box #1 switch #2, the output end of the main connection box #1 switch #1 is connected to a main connection box #2 switch #1 through one optical fiber, the output end of the main connection box #1 switch #2 is connected to a main connection box #2 switch #2 through one optical fiber, the output ends of the main connection box #2 switch #1 and the main connection box #2 switch #2 are respectively connected to the shore-end switch through one optical fiber, and the effective redundancy function is realized between a shore station and the main connection box, the main connection box and a secondary connection box, the reliability and the fault resistance of the system are improved to a great extent.
Description
Technical Field
The invention relates to the technical field of ocean observation systems, in particular to a submarine observation network redundancy system based on a ring network topology structure and a using method thereof.
Background
The communication system of the submarine observation network provides service for data transmission of the submarine observation network, wherein power supply of shore-based equipment is provided by shore-based power supply, and power supply of underwater communication equipment is provided by special power supply equipment of the submarine observation network. In some existing submarine observation network communication systems, the network architecture is mainly of a chain type, that is, a backbone network is connected in series to form a line. The method can borrow the previous main node as the transmission relay of the next main node, and can prolong the network distance. However, this method also has a fatal weakness that when any one master node in the network fails, all the master nodes behind the master node fail. Therefore, it is necessary to design a submarine observation network multi-node communication system with high reliability, high transmission efficiency and redundant function.
The value ratio of each component of the submarine observation network is mentioned in '2018-2024 China submarine observation industry market depth survey and investment prospect analysis report', wherein the ROV is used for installing instruments, cables and the like in a deep sea unmanned environment, and the total value accounts for about 15%. In the aspect of subsequent annual operation and maintenance, the method mainly comprises the steps of checking, maintaining and replacing the cable, the seabed junction box and the sensor network, and accounts for about 20% of the overall equipment value of the whole network. Therefore, the underwater equipment of the submarine observation network is very expensive to release, recover and maintain, and therefore high fault resistance, high reliability and redundant functions become important in design.
The prior art scheme is as follows:
in some existing submarine observation network communication systems, the network architecture is mainly of a chain type, that is, a backbone network is connected in series to form a line. As shown in fig. 1, the main junction box switch is connected to a first main junction box switch through a trunk optical cable (one path of optical fiber) from the shore-side switch, and then extends from the main junction box switch to a next main junction box. The switch of each secondary junction box is connected to the switch of the primary junction box to enable communication over the trunk cable.
The biggest defect of the single-chain network is that the fault resistance is not high, and the whole communication system is broken down due to the fault of the switch of any main junction box or the fault of the optical cable at any point on the main optical cable. Meanwhile, the communication network from the primary junction box to the secondary junction box is also a single connection, and the connection problem between the primary junction box and the secondary junction box can also lead to paralysis of the secondary junction box.
The invention aims to provide a submarine observation network multi-node communication system which is high in reliability, transmission efficiency and redundancy function and is used for building communication platforms for different nodes of a submarine observation network.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a submarine observation network redundancy system based on a ring network topology structure and a using method thereof, which have the advantages of high reliability, high transmission efficiency, redundancy function and the like, and solve the problem that the maximum defect of a single chain type network is that the fault resistance is not high, and the whole communication system falls into paralysis due to the fault of a switch of any main connection box or the fault of an optical cable at any point on a main optical cable. Meanwhile, the communication network from the primary junction box to the secondary junction box is also a single connection, and the connection problem between the primary junction box and the secondary junction box can also lead to the breakdown of the secondary junction box.
(II) technical scheme
In order to achieve the purposes of high reliability, high transmission efficiency and redundancy function, the invention provides the following technical scheme: seabed observation network redundancy system based on looped netowrk topological structure, including the bank end switch, the output of bank end switch passes through trunk optical cable (contains two way optic fibre), is connected to on main box #1 switch #1 of plugging into all the ways, and another way is connected to on main box #1 switch #2 of plugging into, the main output of box #1 switch #1 of plugging into is connected to on the main box #2 switch #1 of plugging into through optic fibre all the way, the main output of box #1 switch #2 of plugging into is connected to on the main box #2 switch #2 of plugging into through optic fibre all the way, main box #1 switch #1 of plugging into and main box #1 switch #2 of plugging into are connected through optic fibre all the way, main box #2 switch #1 of plugging into and main box #2 switch #2 of plugging into are connected to bank end through optic fibre all the way respectively and are plugged into bank end through optic fibre all the way and are connected into And (6) replacing the machine.
Preferably, the main junction box #1 switch #1 and the main junction box #1 switch #2 are commonly connected to a secondary junction box #1 switch, and an output end and an input end of the secondary junction box #1 switch are connected to the main junction box #1 switch #1 and the main junction box #1 switch #2 through two optical fibers.
Preferably, the main junction box #2 switch #1 and the main junction box #2 switch #2 are commonly connected to a secondary junction box #2 switch, and an output end and an input end of the secondary junction box #2 switch are respectively connected to the main junction box #2 switch #1 and the main junction box #2 switch #2 through two optical fibers.
Preferably, the shore-side switch is set as a shore-side switch to complete ring network configuration of all switches.
Preferably, one of the connection ports of the bank-side switch is set to a blocking state, which prevents forwarding of ethernet data frames and only allows forwarding of redundant control frames, thereby ensuring that there is a physical loop but no logical loop.
When the method works normally, one of the connection ports of the shore-side switch is set to be in a blocking state, so that the forwarding of Ethernet data frames is prevented, and only redundant control frames are allowed to be forwarded, thereby ensuring that the system is a loop physically but has no logic loop;
under normal conditions, a shore-side switch has one forwarding port (primary port) and one congestion port (secondary port), and both ports of other device nodes on the ring are forwarding ports. If the network fault is detected, the bank end switch can quickly open the blocked port to recover the communication;
in the ring failure state, the shore-side switch still periodically sends a detection frame on the primary port, and once the ring failure is recovered, the next detection frame will be received on the secondary port, which will cause the shore-side switch to return to the normal state.
(III) advantageous effects
Compared with the prior art, the invention provides a submarine observation network redundancy system based on a ring network topology structure and a using method thereof, and the submarine observation network redundancy system has the following beneficial effects:
1. according to the seabed observation network redundancy system based on the ring network topological structure and the using method, the effective redundancy function is realized between the shore station and the main connection box, and between the main connection box and the secondary connection box, so that the reliability and the fault resistance of the system are improved to a great extent.
2. The submarine observation network redundancy system based on the ring network topology structure and the using method thereof improve the fault compatibility of the optical cable, the switch and the optical module lamp communication equipment, prolong the service life of the whole system, reduce the maintenance times in the life cycle of the system and greatly reduce the cost.
Drawings
FIG. 1 is a schematic diagram of a topology structure of a combined ring network according to the present invention;
fig. 2 is a schematic diagram of a chain network topology according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the submarine observation network redundancy system based on the ring network topology structure includes a shoreside switch, an output end of the shoreside switch is connected to a main junction box #1 switch #1 through a trunk optical cable (including two optical fibers), an output end of the main junction box #1 switch #1 is connected to a main junction box #2 switch #1 through an optical fiber, and an output end of the main junction box #2 switch #1 is connected to the shoreside switch through an optical fiber.
The output of the shore-end switch is connected to the main junction box #1 switch #2 through the other path of the trunk optical cable (containing two paths of optical fibers), the output of the main junction box #1 switch #2 is connected to the main junction box #2 switch #2 through one path of optical fibers, and the output of the main junction box #2 switch #2 is connected to the shore-end switch through one path of optical fibers.
The main box #1 switch #1 and the main box #1 switch #2 of plugging into that plugs into get up through optic fibre interconnect all the way, and the main box #1 switch #1 of plugging into and the main box #1 switch #2 of plugging into jointly are connected with the box #1 switch of plugging into of inferior, and the output and the input of the box #1 switch of plugging into of inferior are connected to on main box #1 switch #1 of plugging into and the main box #1 switch #2 of plugging into through two way optic fibres.
The main box #2 switch #1 and the main box #2 switch #2 of plugging into get up through optic fibre interconnect all the way, and the main box #2 switch #1 and the main box #2 switch #2 of plugging into are connected with the box #2 switch of plugging into of inferior jointly, and the output and the input of the box #2 switch of plugging into of inferior are all connected to on main box #2 switch #1 and the main box #2 switch #2 of plugging into respectively through two way optic fibres.
According to the use method of the seabed observation network redundancy system based on the ring network topology structure, a shore-end switch is set as a shore-end switch, and ring network configuration of all switches is completed. When the system works normally, one of the connection ports of the shore-side switch is set to be in a blocking state, the forwarding of Ethernet data frames is prevented, only redundant control frames are allowed to be forwarded, and the fact that a loop is physically formed is guaranteed, but no logic loop exists. Thus, under normal conditions, a port switch has one forwarding port (primary port) and one congested port (secondary port), and both ports of other device nodes on the ring are forwarding ports. If the network failure is detected, the bank-end switch can quickly open the blocked port to recover the communication. When the ring fault state is in, the shore-side switch still periodically sends the detection frame on the primary port, once the ring fault is recovered, the next detection frame is received on the secondary port, which can cause the shore-side switch to return to the normal state, and the effective redundancy function is realized between the shore station and the primary junction box and between the primary junction box and the secondary junction box, so that the reliability and the fault resistance of the system are improved to a great extent. The fault compatibility of the optical cable, the switchboard and the optical module lamp communication equipment is improved, the service life of the whole system is prolonged, the maintenance times are reduced in the life cycle of the system, and the cost is greatly reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Redundant system of seabed observation network based on looped netowrk topological structure, including bank end switch, its characterized in that: the output end of the shore-end switch is connected to a main junction box #1 switch #1 through a trunk optical cable (comprising two paths of optical fibers), the other path is connected to a main junction box #1 switch #2, the output end of the switch #1 of the main junction box #1 is connected to the switch #1 of the main junction box #2 through one path of optical fiber, the output end of the switch #2 of the main junction box #1 is connected to the switch #2 of the main junction box #2 through one path of optical fiber, the main junction box #1 switch #1 and the main junction box #1 switch #2 are connected with each other through a single optical fiber, the main junction box #2 switch #1 and the main junction box #2 switch #2 are connected to each other through one optical fiber, and the output ends of the main junction box #2 switch #1 and the main junction box #2 switch #2 are respectively connected to the shore-end switch through one path of optical fiber.
2. The subsea observation network redundancy system based on ring network topology according to claim 1, characterized in that: the main junction box #1 switch #1 and the main junction box #1 switch #2 are connected with a secondary junction box #1 switch, and the output end and the input end of the secondary junction box #1 switch are connected to the main junction box #1 switch #1 and the main junction box #1 switch #2 through two optical fibers.
3. The subsea observation network redundancy system based on ring network topology according to claim 1, characterized in that: the main junction box #2 switch #1 and the main junction box #2 switch #2 are connected with a secondary junction box #2 switch, and the output end and the input end of the secondary junction box #2 switch are connected to the main junction box #2 switch #1 and the main junction box #2 switch #2 through two optical fibers respectively.
4. The subsea observation network redundancy system based on ring network topology according to claim 1, characterized in that: and the shore-side switch is set as a shore-side switch to complete the ring network configuration of all switches.
5. The use method of the submarine observation network redundancy system based on the ring network topology structure is characterized in that: when the system works normally, one of the connection ports of the shore-side switch is set to be in a blocking state, the forwarding of Ethernet data frames is prevented, only redundant control frames are allowed to be forwarded, and the fact that a loop is physically formed but no logic loop exists is guaranteed;
under normal conditions, a shore-side switch has one forwarding port (primary port) and one congestion port (secondary port), and both ports of other device nodes on the ring are forwarding ports. If the network fault is detected, the bank end switch can quickly open the blocked port to recover the communication;
in the ring failure state, the shore-side switch still periodically sends a detection frame on the primary port, and once the ring failure is recovered, the next detection frame will be received on the secondary port, which will cause the shore-side switch to return to the normal state.
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Application publication date: 20200623 |