CN102223585A - Intelligent reconfigurable optical distribution frame and intelligent reconfigurable optical fiber communication system - Google Patents

Abstract

The invention discloses an intelligent reconfigurable optical distribution frame, which belongs to the technical field of optical communication. The intelligent reconfigurable optical distribution frame of the present invention includes a power supply module for supplying power to each component in the optical distribution frame, an optical switch array composed of a plurality of optical switches, and a signal connection with the optical switch array and The main control module for control. The present invention may further comprise a communication module and/or a local operating interface. The invention also discloses an intelligent reconfigurable optical fiber communication system, which includes a plurality of remote stations connected to each other through optical cables, the remote stations are provided with the intelligent reconfigurable optical distribution frame of the present invention, and the Each optical switch of the optical switch is respectively connected between a pair of incoming optical fibers and outgoing optical fibers. The invention realizes an intelligent and reconfigurable remote optical wiring system by introducing an intelligent and controllable optical switch array, and solves the problems of low efficiency and poor reliability in the prior art.

Description

Intelligent reconfigurable optical distribution frame and intelligent reconfigurable optical fiber communication system

technical field

The invention relates to an intelligent reconfigurable optical distribution frame, which is mainly used for intelligent control of the connection relationship between multiple optical fiber ports in the optical distribution frame system of remote nodes in an optical fiber communication system, and belongs to the technical field of optical communication.

Background technique

Optical Distribution Frame (ODF) is an implementation system for the termination and distribution of optical cables in each office in the optical fiber communication system, which can realize the connection, distribution and scheduling of optical fiber lines. The connection relationship between the optical fibers in the traditional optical distribution frame system mainly relies on manual processing, that is, before the system is opened, the optical fibers that need to be connected are manually connected on the ODF using optical fiber active connectors. For optical fiber lines with large capacity, there are a large number of optical fibers on the ODF, and the connection relationship and configuration are complicated, which is not conducive to maintenance; at the same time, the connection relationship and status of each optical fiber in the ODF completely depends on the original data accumulation in the initial installation stage of the system (manually) , it is impossible to obtain the real-time fiber jumper configuration and status information of the ODF system in each office in the entire system in real time. When the line is changed due to service configuration, cutover or capacity expansion, it is necessary to recheck and confirm each site, and then adopt the manual configuration method (manually plugging and unplugging the corresponding active connector on the ODF) for operation. For the application scenario where there are many office sites in the optical fiber line system and the distribution is relatively scattered, it takes a long time to complete the reconfiguration of the entire link; during this period, the communication status of the entire system may need to be interrupted for a long time, which affects the actual operation business has a greater impact. Especially for optical fiber communication with long transmission distance and many intermediate sites, operators need to manually configure and update sites one by one for remote maintenance, which not only takes a long time for reconfiguration and fault recovery, but also causes The cost of maintenance personnel and so on is also high. At the same time, for some optical fiber lines that have been laid for a long time, the identification of the ODF jumper optical fiber at the remote site is prone to ambiguity and other common situations, which may easily cause wrong insertion and removal and configuration confusion during actual construction, maintenance, and cutover. .

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an intelligent reconfigurable optical distribution frame and an intelligent reconfigurable optical fiber communication system.

The intelligent reconfigurable optical distribution frame of the present invention includes a power supply module for supplying power to each component in the optical distribution frame, an optical switch array composed of a plurality of optical switches, and a signal connection with the optical switch array and The main control module for control.

Further, the optical distribution frame further includes a local operation interface signal-connected with the main control module, so that the status monitoring and fiber jumping operation of the optical distribution frame can be realized locally conveniently.

Further, the optical distribution frame further includes a communication module signal-connected to the main control module. Through the communication module, the remote monitoring of the status of the optical distribution frame can be realized.

An intelligent reconfigurable optical fiber communication system includes a plurality of remote stations connected to each other through optical cables; the remote station includes an intelligent reconfigurable optical distribution frame; the intelligent reconfigurable optical distribution frame includes A power supply module for supplying power to each component in the optical distribution frame, an optical switch array composed of a plurality of optical switches, and a main control module connected with and controlling signals of the optical switch array; the optical switch array Each optical switch in is respectively connected between a pair of incoming optical fiber and outgoing optical fiber.

Further, the intelligent reconfigurable optical distribution frame includes a communication module signally connected to the main control module; the intelligent reconfigurable optical fiber communication system also includes at least one main control station, which communicates with each The communication module of the intelligent reconfigurable optical distribution frame of the remote station is connected to and monitors the intelligent reconfigurable optical distribution frame.

The remote network management channel can be Ethernet, dedicated optical fiber, or non-specialized optical fiber using wavelength division multiplexing technology, and the control signals for controlling the intelligent reconfigurable optical distribution frames are transmitted through pre-allocated bands.

The present invention overcomes the defects of low fiber jumping efficiency and poor reliability in the prior art, and when it is necessary to change or update the configuration of the optical fiber line, the remote operation command through the network management (also can be directly operated on the operation interface of each remote station) ) can realize the automatic completion of ODF fiber jumper, thereby effectively improving the response time of optical fiber line reconfiguration, reducing the probability of human error operation, and effectively reducing system cost while improving efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of the intelligent reconfigurable optical distribution frame of the present invention;

Fig. 2 is a schematic diagram of the connection relationship between the optical switch array and the input and output optical fibers;

Fig. 3 is a schematic structural diagram of the intelligent reconfigurable optical fiber communication system of the present invention.

Detailed ways

The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

The structure of the intelligent reconfigurable optical fiber communication system of the present invention is shown in Figure 3, including a master control station (a standby master control station can also be configured as required) and a plurality of remote stations connected to each other through optical cables. The station is equipped with the intelligent reconfigurable optical distribution frame of the present invention, and the main control station can use the remote network management channel (Ethernet mode, optical device + dedicated wavelength mode, out-of-band RS232 mode, etc.) to connect with the communication modules of the intelligent reconfigurable optical distribution frame of each remote station and monitor the intelligent reconfigurable optical distribution frame. The main control station is equipped with a network management server, which can display the ODF configuration status of each remote station in real time. When an ODF action is required, the central station network manager issues an operation command, and the remote station ODF automatically completes the operation.

The structure of the intelligent reconfigurable optical distribution frame is shown in Figure 1, including a power module, an optical switch array, a main control module, a local operation interface, and a communication module. Among them, the optical switch array is the basic part to realize the reconfigurable ODF, which is composed of several optical switches and connected with optical cables. Under the control of the main control module, the optical switch array can trigger the specified optical switch to complete the connection or cut-off operation between the specified optical fibers. The power module is responsible for providing the required energy supply for other parts in the system. The communication module is used to realize the communication between each remote station and between the remote station and the central station. The realization of the communication module can adopt the way of dedicated signaling optical fiber, and can also adopt the intra-fiber coarse wavelength division multiplexing technology (CWDM). The local operation interface provides backup system operation, which can realize fast fiber patch operation locally at the remote station (without manual plugging and unplugging of active connectors).

An optical switch is an optical device that can switch on and off optical signals in an optical communication system. The core part of the present invention is the optical switch array, which is composed of multiple 1×1 optical switches (the specific number can be flexibly expanded according to the total number of incoming and outgoing optical fibers controlled as required). Each optical switch is connected with a pair of input and output optical fibers, and its state is controlled by the main control module. When it is necessary to change the on or off state between a specific input and output fiber pair, the main control module sends an instruction to the corresponding optical switch in the optical switch array through the internal bus, indicating that the optical switch is on or off, thereby realizing Changes in the connection relationship between optical fibers in the optical distribution frame system. The following uses FIG. 2 as an example to illustrate the connection relationship between the optical switch array and the input and output optical fibers and its working principle. In the figure, the input optical cable has four optical fibers, marked by A, B, C, and D; the output optical cable also has four optical fibers, which are marked by I, II, III, and IV. There are 4 optical switches in the optical switch array, respectively connected to A-I, B-II, C-III and D-IV. The main control module maintains a 4×4 optical switch array addressing view, each optical switch has two states of on and off, and its working state is controlled by the control level sent by the main control module. When the connection between A-I is required, the main control module sends out an operation instruction, and the optical switch between A-I is switched to the on state, so that the direct connection of the optical signal between A-I can be realized. If it is necessary to cut off the optical signal between B-II, the main control module will issue an operation instruction, and the optical switch between B-II will be switched to the cut-off state, and then the optical signal between B-II will be cut off. In this way, the connection state change between different optical fibers can be realized, that is, the connection or cut-off state of the optical signal can be controlled. When the remote station has more optical fibers to be controlled, the scale of the optical switch array and the addressing view of the corresponding main control module can be expanded to achieve flexible expansion.

Claims (9)

1. reconfigurable Optical Distribution Frame of intelligence, it is characterized in that, described Optical Distribution Frame comprises the power module that is used in the Optical Distribution Frame each parts power supply, the array of photoswitch of forming by a plurality of optical switches, and be connected with described array of photoswitch signal and to its main control module of controlling.

2. intelligent according to claim 1 reconfigurable Optical Distribution Frame is characterized in that described Optical Distribution Frame also comprises the local operation interface that is connected with described main control module signal.

3. intelligent according to claim 1 reconfigurable Optical Distribution Frame is characterized in that described Optical Distribution Frame also comprises the communication module that is connected with described main control module signal.

4. the reconfigurable optical fiber telecommunications system of intelligence comprises a plurality of remote terminals that connect by optical cable each other, it is characterized in that described remote terminal comprises intelligent according to claim 1 reconfigurable Optical Distribution Frame; Each optical switch in the described array of photoswitch inserts a pair of incoming fiber optic respectively and picks out between the optical fiber.

5. as the reconfigurable optical fiber telecommunications system of intelligence as described in the claim 4, it is characterized in that the reconfigurable Optical Distribution Frame of described intelligence comprises the communication module that is connected with described main control module signal; The reconfigurable optical fiber telecommunications system of described intelligence also comprises at least one master station, is connected with the communication module of the reconfigurable Optical Distribution Frame of each remote terminal intelligence and the reconfigurable Optical Distribution Frame of intelligence is monitored by the far-end network management path.

6. as the reconfigurable optical fiber telecommunications system of intelligence as described in the claim 5, it is characterized in that described far-end network management path is Ethernet.

7. as the reconfigurable optical fiber telecommunications system of intelligence as described in the claim 5, it is characterized in that described far-end network management path is a special optic fibre.

8. as the reconfigurable optical fiber telecommunications system of intelligence as described in the claim 5, it is characterized in that, described far-end network management path transmits by pre-assigned wave band the control signal that described each intelligent reconfigurable Optical Distribution Frame is controlled for adopting the non-special optic fibre of wavelength-division multiplex technique.

9. as claim 4-8 reconfigurable optical fiber telecommunications system of intelligence as described in each, it is characterized in that the reconfigurable Optical Distribution Frame of described intelligence also comprises the local operation interface that is connected with described main control module signal.

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