Wavelength division multiplexing method, system and device based on DCI-BOX and storage medium

Abstract

The invention relates to a wavelength division multiplexing method based on DCI-BOX, and the method comprises the steps: receiving a plurality of to-be-transmitted optical signals, and marking an input port corresponding to each optical signal; judging whether the frequency of the optical signal received by each input port is in a preset frequency interval, extracting the input port which is not in the preset frequency interval as a port to be configured, and determining the position of the port to be configured according to the mark number; according to the position of the to-be-configured port, performing routing configuration by using an optical cross connection matrix; and constructing a signal transmission channel according to the routing configuration, and transmitting an optical signal to an output port by using the signal transmission channel. By discriminating the optical signal frequency in each input port, the input ports belonging to the preset frequency interval can be subjected to optical signal transmission according to the original transmission route, and the input ports not in the preset frequency interval are subjected to route configuration by applying the optical cross connection matrix.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a wavelength division multiplexing method, system, device and storage medium based on DCI-BOX. Background Art

[0002] With the upgrade of new metropolitan area networks, the corresponding metropolitan area wavelength division multiplexing transmission systems are also being upgraded and evolving towards large bandwidth, high integration, and low power consumption. Therefore, research on more efficient and economical miniaturized wavelength division multiplexing systems has become one of the current research hotspots.

[0003] The common solution currently includes using miniaturized WDM modules to replace traditional large-size DWDM equipment. These miniaturized modules are small and easy to integrate. However, existing miniaturized WDM modules generally have the problems of low flexibility and difficulty in upgrading, especially when network requirements change, the channel configuration cannot be adjusted quickly. Summary of the invention

[0004] The purpose of the present invention is to provide a wavelength division multiplexing method based on DCI-BOX to solve the problems in the background technology.

[0005] A first aspect of the present invention provides a wavelength division multiplexing method based on DCI-BOX, comprising:

[0006] receiving a plurality of optical signals to be transmitted, and labeling an input port corresponding to each of the optical signals;

[0007] Determine whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extract the input ports that are not within the preset frequency interval as ports to be configured, and determine the positions of the ports to be configured according to the labels;

[0008] According to the position of the port to be configured, an optical cross-connect matrix is ​​used to perform routing configuration;

[0009] A signal transmission channel is constructed according to the routing configuration, and the signal transmission channel is used to transmit the optical signal to the output port.

[0010] In the present invention, by identifying the optical signal frequency in each input port, the input port belonging to the preset frequency interval can transmit the optical signal according to the original transmission route, and the input port not belonging to the preset frequency interval is configured by the optical cross-connection matrix. This can reduce the time required for configuration, quickly realize channel configuration, and perform optical signal transmission.

[0011] In a possible implementation manner, the receiving a plurality of optical signals to be transmitted and labeling an input port corresponding to each of the optical signals includes:

[0012] The arrival time of each optical signal is obtained, and a sequence number is assigned to the input port corresponding to each optical signal according to the order of the arrival time.

[0013] By labeling the input ports according to the chronological order, when using the optical cross-connect matrix for routing configuration, optical signals with earlier arrival times can be configured first, and then those with later arrival times can be configured, which can improve the efficiency of channel configuration and use.

[0014] In a possible implementation, the determining whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extracting the input port that is not within the preset frequency interval as the port to be configured, and determining the position of the port to be configured according to the label, includes:

[0015] The optical signal frequency is compared with the preset frequency intervals in sequence. If the optical signal frequency does not belong to any of the frequency intervals, this input port is the port to be configured, the label of the port to be configured is obtained, and the position of the port to be configured is determined according to a mapping table between the label and the position.

[0016] In a possible implementation manner, applying an optical cross-connect matrix to perform routing configuration according to the position of the port to be configured includes:

[0017] The positions of unoccupied output ports are obtained, and a topological map of the ports to be configured and the unoccupied output ports is established by applying an optical cross-connection matrix. According to a shortest path algorithm, the paths on the topological map are calculated to obtain an optimal path solution corresponding to the topological map, and routing configuration is performed according to the optimal path solution.

[0018] In a possible implementation, calculating the path on the topology map according to the shortest path algorithm to obtain the optimal path solution corresponding to the topology map includes:

[0019] According to the order of the labels, the paths in the topology diagram are screened in turn using the shortest path algorithm to obtain the optimal route of each of the optical signals; wherein the shortest path algorithm uses the Floyd algorithm.

[0020] In a possible implementation manner, after the signal transmission channel is constructed according to the routing configuration and the optical signal is transmitted to the output port by using the signal transmission channel, the method further includes:

[0021] The route of the transmission channel and the frequency of the optical signal are generated into a system log, and the frequency of the real-time optical signal is monitored. If the frequency is consistent with the record of the system log, the route corresponding to the system log is used to transmit the optical signal.

[0022] A second aspect of the present invention provides a wavelength division multiplexing system based on a DCI-BOX, comprising:

[0023] a control unit, configured to determine whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extract the input ports that are not within the preset frequency interval as ports to be configured, determine the positions of the ports to be configured according to the labels, and construct a signal transmission channel according to the routing configuration;

[0024] a multi-channel transceiver, configured to receive a plurality of optical signals to be transmitted, transmit the optical signals to an output port using the signal transmission channel, and send the optical signals;

[0025] The optical cross-connection matrix is ​​used to establish a topological diagram of the positions of the ports to be configured and the positions of the output ports, and perform routing configuration according to the topological diagram.

[0026] In a possible implementation manner, the DCI-BOX-based wavelength division multiplexing system further includes:

[0027] The monitoring platform is used to monitor the packet loss rate of the data obtained by recovering the optical signal sent by the multi-channel transceiver received by the receiving end. If the packet loss rate of the real-time data is greater than the preset packet loss threshold, the output port information corresponding to the real-time data is obtained and sent to the control unit.

[0028] The third aspect of the present invention provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the DCI-BOX-based wavelength division multiplexing method as described in the first aspect of the present invention is implemented.

[0029] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the DCI-BOX-based wavelength division multiplexing method as described in the first aspect of the present invention is implemented.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] By identifying the optical signal frequency in each input port, the input ports in the preset frequency range can transmit optical signals according to the original transmission route, while the input ports not in the preset frequency range are routed using the optical cross-connect matrix. This can reduce the time required for configuration and quickly configure channels for optical signal transmission. It reduces the total cost of ownership, especially for large-scale deployment. It improves the reliability and security of the overall network. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic flow chart of a wavelength division multiplexing method based on DCI-BOX of the present invention;

[0033] Figure 2 It is a schematic diagram of a wavelength division multiplexing system based on DCI-BOX of the present invention;

[0034] Figure 3 A schematic diagram of a computer device according to the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that the serial numbers assigned to the components in the embodiments of the present invention, such as "first" and "second", are only used to distinguish the objects being described and do not have any order or technical meaning.

[0037] Combine the following Figure 1 The wavelength division multiplexing method based on DCI-BOX of the present invention is described.

[0038] A wavelength division multiplexing method based on DCI-BOX, comprising:

[0039] S1. receiving a plurality of optical signals to be transmitted, and labeling an input port corresponding to each of the optical signals;

[0040] Specifically, the arrival time of each optical signal is obtained, and a sequence number is assigned to the input port corresponding to each optical signal according to the order of the arrival time.

[0041] By labeling the input ports according to the chronological order, when using the optical cross-connect matrix for routing configuration, optical signals with earlier arrival times can be configured first, and then those with later arrival times can be configured, which can improve the efficiency of channel configuration and use.

[0042] In order to improve the transmission efficiency of optical signals, it is necessary to sort them according to the time when the optical signals arrive at the system, and transmit the optical signals that arrive at the DCI first. This can prevent signal blocking and improve the utilization rate of DCI.

[0043] When DCI transmits optical signals, it first uses optical fiber to connect to the corresponding input port on the device. That is to say, each input port receives the corresponding optical signal in real time, and DCI integrates these optical signals into the corresponding output port for wavelength division multiplexing transmission.

[0044] S2, determining whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extracting the input ports that are not within the preset frequency interval as ports to be configured, and determining the positions of the ports to be configured according to the labels;

[0045] Specifically, the optical signal frequency is compared with the preset frequency intervals in sequence. If the optical signal frequency does not belong to any of the frequency intervals, the input port is the port to be configured, the number of the port to be configured is obtained, and the position of the port to be configured is determined according to a mapping table between the number and the position.

[0046] Among them, taking 2.4GHZ as an example, the frequency range of each port in a router is set in an ascending manner, such as [2.401, 2.406] for port 1, [2.411, 2.428] for port 2, [2.433, 2.445] for port 3, and so on. If the frequency of the optical signal to be transmitted is within any of the above ports, the corresponding output port is determined according to the preset route of the port. For optical signals that are not in the preset frequency range, route planning is required to obtain the best optical signal transmission solution.

[0047] S3, according to the position of the port to be configured, applying the optical cross-connect matrix to perform routing configuration;

[0048] Specifically, unoccupied output port positions are obtained, an optical cross-connection matrix is ​​applied to establish a topological map of the positions of the ports to be configured and the output port positions, the paths on the topological map are calculated according to the shortest path algorithm, an optimal path solution corresponding to the topological map is obtained, and routing configuration is performed according to the optimal path solution.

[0049] In order to effectively configure optical signals of different frequencies corresponding to multiple receiving ports to suitable output ports for transmission, adopting the shortest path can undoubtedly improve the efficiency of signal transmission.

[0050] When performing the shortest path calculation, the paths in the topology diagram can be screened in the order of the labels using the shortest path algorithm to obtain the optimal route for each of the optical signals; and the corresponding optical signals with the front labels are first calculated according to the shortest path to obtain the optimal path for the optical signal, so that the optical signals that arrive in the system first can be transmitted first, and the optical signals that arrive in the system later can be transmitted later, thereby preventing the optical signals from being blocked.

[0051] The shortest path algorithm adopts Floyd's algorithm. Specifically, for each pair of input port u and output port v, see if there is an output port w that makes the path from u to w and then to v shorter than the known path. If so, update it.

[0052] The topology graph is represented by the adjacency matrix G. If there is a path from Vi to Vj, then G[i][j] = d, where d represents the length of the path; otherwise G[i][j] = infinity. Define a matrix D to record the information of the inserted points. D[i][j] represents the points that need to be passed from Vi to Vj. Initialize D[i][j] = j. Insert each port into the graph and compare the distance after the insertion with the original distance. G[i][j] = min(G[i][j], G[i][k] + G[k][j]). If the value of G[i][j] becomes smaller, then D[i][j] = k. G contains the information of the shortest path between two points, while D contains the information of the shortest path. The Floyd algorithm can effectively establish the optimal path that each input port can obtain when transmitting optical signals, thereby improving the efficiency of routing configuration.

[0053] It should be noted that, for wavelength division multiplexing, the signal output by an output port comes from multiple input ports, and when performing the shortest path configuration, one of the output ports may be blocked. Therefore, the routing configuration may also include the following steps:

[0054] Monitor the real-time data volume of each output port. If the real-time data volume of any output port is greater than the port load, mark the port as an abnormal port and remove the output port when configuring the route according to the label. In this way, the result of the shortest path can be corrected to meet the purpose of system transmission optimization.

[0055] S4. Construct a signal transmission channel according to the routing configuration, and use the signal transmission channel to transmit the optical signal to the output port.

[0056] After step S4, the following steps may also be included:

[0057] Generate a system log with the routing and optical signal frequency of the transmission channel, monitor the frequency of the real-time optical signal, and if the frequency is consistent with the record of the system log, use the route corresponding to the system log to transmit the optical signal. By establishing a system log, the subsequent optical signal transmission can be adjusted according to the real-time frequency, that is, if the subsequent optical signal frequency is consistent with the previous optical signal frequency, the previous route is used to transmit the optical signal, and there is no need to reconfigure the optical signal, which effectively reduces the load of the system and improves the utilization rate of the optical cross-connection matrix. If the difference between the frequency of the next optical signal and the frequency of the previous optical signal is greater than the preset difference, repeat the aforementioned steps to use the optical cross-connection matrix to configure the route of the optical signal to the output port for transmission.

[0058] In the present invention, by identifying the optical signal frequency in each input port, the input port belonging to the preset frequency interval can be used to transmit the optical signal according to the original transmission route, while the input port not in the preset frequency interval is routed using the optical cross-connection matrix. This can reduce the time required for configuration and quickly implement channel configuration for optical signal transmission.

[0059] A second aspect of the present invention provides a wavelength division multiplexing system based on a DCI-BOX, comprising:

[0060] The control unit 10 is used to determine whether the frequency of the optical signal received by each input port is within the preset frequency interval, extract the input port that is not within the preset frequency interval as the port to be configured, determine the position of the port to be configured according to the label, and build a signal transmission channel according to the routing configuration; the control unit can use a high-performance processor as the core processing chip, support software-defined functions, so that different applications can be dynamically loaded according to actual needs. The control unit controls and deploys the entire system to improve the efficiency of optical signal transmission. The control unit can also choose ARM architecture or other embedded computing platforms.

[0061] The multi-channel transceiver 20 is used to receive multiple optical signals to be transmitted, transmit the optical signals to the output port using the signal transmission channel, and send the optical signals; the multi-channel transceiver selects devices compatible with multiple rate standards to ensure its versatility and scalability.

[0062] The optical cross-connect matrix 30 is used to establish a topological diagram of the positions of the ports to be configured and the positions of the output ports, and perform routing configuration according to the topological diagram. The optical cross-connect matrix is ​​composed of a series of reconfigurable optical adder / subtractor (ROADM) nodes, allowing real-time adjustment of waveguide routing.

[0063] The monitoring platform 40 is used to monitor the packet loss rate of the data obtained by recovering the optical signal sent by the multi-channel transceiver received by the receiving end. If the packet loss rate of the real-time data is greater than the preset packet loss threshold, the output port information corresponding to the real-time data is obtained and sent to the control unit. The monitoring platform can effectively feedback the data of the output port in real time to obtain the optimal routing solution.

[0064] In a third aspect of the present invention, Figure 3 As shown, a computer device 50 is provided, including a memory 52, a processor 51, and a computer program 53 stored in the memory 52 and executable on the processor 51. When the processor 51 executes the computer program 53, the steps in the data transmission method in the above embodiment are implemented. To avoid repetition, they are not described here. Alternatively, when the processor 51 executes the computer program 53, the functions of each module in the above DCI-BOX-based wavelength division multiplexing device embodiment are implemented. To avoid repetition, they are not described here.

[0065] In a fourth aspect of the present invention, a readable storage medium is provided, wherein the readable storage medium stores a computer program 53. When the computer program 53 is executed by the processor 51, the steps in the data transmission method in the above embodiment are implemented. To avoid repetition, they are not described here. Alternatively, when the processor 51 executes the computer program 53, the functions of each module in the above data transmission device embodiment are implemented. To avoid repetition, they are not described here.

[0066] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM, etc.

[0067] The volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct RAMbus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0068] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules, sub-modules and units as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wavelength division multiplexing method based on DCI-BOX, characterized in that: include: receiving a plurality of optical signals to be transmitted, and labeling an input port corresponding to each of the optical signals; Determine whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extract the input ports that are not within the preset frequency interval as ports to be configured, and determine the positions of the ports to be configured according to the labels; According to the position of the port to be configured, an optical cross-connect matrix is ​​used to perform routing configuration; A signal transmission channel is constructed according to the routing configuration, and the signal transmission channel is used to transmit the optical signal to the output port.

2. The wavelength division multiplexing method based on DCI-BOX according to claim 1, characterized in that: The receiving of multiple optical signals to be transmitted and labeling input ports corresponding to the optical signals includes: The arrival time of each optical signal is obtained, and a sequence number is assigned to the input port corresponding to each optical signal according to the order of the arrival time.

3. The wavelength division multiplexing method based on DCI-BOX according to claim 1, characterized in that: The determining whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extracting the input ports that are not within the preset frequency interval as ports to be configured, and determining the positions of the ports to be configured according to the labels, comprises: The optical signal frequency is compared with the preset frequency intervals in sequence. If the optical signal frequency does not belong to any of the frequency intervals, this input port is the port to be configured, the label of the port to be configured is obtained, and the position of the port to be configured is determined according to a mapping table between the label and the position.

4. The wavelength division multiplexing method based on DCI-BOX according to claim 1, characterized in that: The step of applying an optical cross-connect matrix to perform routing configuration according to the position of the port to be configured includes: The positions of unoccupied output ports are obtained, and a topological map of the ports to be configured and the unoccupied output ports is established by applying an optical cross-connection matrix. According to a shortest path algorithm, the paths on the topological map are calculated to obtain an optimal path solution corresponding to the topological map, and routing configuration is performed according to the optimal path solution.

5. The wavelength division multiplexing method based on DCI-BOX according to claim 4, characterized in that: The calculating the path on the topological graph according to the shortest path algorithm to obtain the optimal path solution corresponding to the topological graph includes: According to the order of the labels, the paths in the topology diagram are screened in turn using the shortest path algorithm to obtain the optimal route of each of the optical signals; wherein the shortest path algorithm uses the Floyd algorithm.

6. The wavelength division multiplexing method based on DCI-BOX according to claim 1, characterized in that: After constructing the signal transmission channel according to the routing configuration and using the signal transmission channel to transmit the optical signal to the output port, the method further includes: The route of the transmission channel and the frequency of the optical signal are generated into a system log, and the frequency of the real-time optical signal is monitored. If the frequency is consistent with the record of the system log, the route corresponding to the system log is used to transmit the optical signal.

7. A wavelength division multiplexing device based on DCI-BOX, comprising: a control unit, configured to determine whether the frequency of the optical signal received by each of the input ports is within a preset frequency interval, extract the input ports that are not within the preset frequency interval as ports to be configured, determine the positions of the ports to be configured according to the labels, and construct a signal transmission channel according to the routing configuration; a multi-channel transceiver, configured to receive a plurality of optical signals to be transmitted, transmit the optical signals to an output port using the signal transmission channel, and send the optical signals; The optical cross-connection matrix is ​​used to establish a topological diagram of the positions of the ports to be configured and the positions of the output ports, and perform routing configuration according to the topological diagram.

8. The wavelength division multiplexing device based on DCI-BOX according to claim 7, characterized in that: Also includes: The monitoring platform is used to monitor the packet loss rate of the data obtained by recovering the optical signal sent by the multi-channel transceiver received by the receiving end. If the packet loss rate of the real-time data is greater than the preset packet loss threshold, the output port information corresponding to the real-time data is obtained and sent to the control unit.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the DCI-BOX-based wavelength division multiplexing method is implemented as described in any one of claims 1 to 6.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the DCI-BOX-based wavelength division multiplexing method according to any one of claims 1 to 6 is implemented.

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