Optical switch and transmission protection integrated system and method

Abstract

The invention relates to the technical field of optical communication, in particular to an optical switch and transmission protection integration system and method.The optical switch and transmission protection integration system comprises an optical switch module, a compensation module and an intelligent monitoring module, the optical switch module is responsible for executing physical switching or logic operation of signals in an optical network, and the compensation module is used for compensating loss introduced by an optical switch and enhancing signal strength; and the intelligent monitoring module monitors the performance state of the optical switch in real time, triggers the optical network recovery module according to a monitoring result, and automatically switches optical paths or starts a standby optical path. The problem of insertion loss and isolation of a non-mechanical optical switch is effectively reduced, the overall performance and reliability of the optical switch and a transmission protection integrated system are improved, it is ensured that signals have low attenuation and interference in the transmission process, and therefore high-quality and long-distance transmission is kept.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an optical switch and transmission protection integrated system and method. Background Art

[0002] The integrated system of optical switch and transmission protection can realize more flexible and reliable protection of optical communication network. When a node or line in the optical communication network fails, the integrated system of transmission protection can quickly detect the fault and trigger the optical switch to switch, isolate the faulty node or line from the network, and enable the backup node or line to maintain the continuity of communication. This combination can greatly improve the availability and reliability of the optical communication network and reduce the impact of faults on communication services.

[0003] Among them, optical switches can be divided into mechanical, micro-opto-electromechanical (MEMS) system switches and other switches. Mechanical optical switches have the advantages of low insertion loss, high isolation, and no influence of polarization and wavelength, but their switching time is long, generally in the order of milliseconds (ms). This may lead to scenarios that require fast switching, such as high-speed optical communications, optical computing, and optical signal processing. The millisecond switching time may cause the system to respond slowly, thus affecting the performance and efficiency of the entire system.

[0004] Non-mechanical optical switches have the advantages of short switching time and easy optical or optoelectronic integration. Non-mechanical optical switches such as electro-optical switches or thermo-optical switches usually have faster switching speeds, which can reach nanoseconds (ns) or picoseconds (ps). In scenarios where fast switching is required, the system responds quickly, but its insertion loss is large and the isolation is low. This may cause greater attenuation and interference of the signal during transmission, affecting the signal quality and transmission distance. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated system and method for optical switch and transmission protection, which solves the problem that non-mechanical optical switches have large insertion loss and low isolation, resulting in large attenuation and interference of signals during transmission, affecting signal quality and transmission distance.

[0006] To achieve the above object, the present invention provides an optical switch and transmission protection integrated system, comprising an optical switch module, a compensation module and an intelligent monitoring module, wherein the optical switch module is connected to the compensation module, and the intelligent monitoring module is connected to the optical switch module and the compensation module respectively;

[0007] The optical switch module is composed of a plurality of non-mechanical optical switches and adopts a multi-stage optical switch design, and reduces the insertion loss of a single non-mechanical optical switch by cascading a plurality of non-mechanical optical switches;

[0008] The compensation module is used to compensate for the loss introduced by the non-mechanical optical switch, enhance the signal strength, and equalize, filter and enhance the signal to improve the signal quality;

[0009] The intelligent monitoring module is used to monitor the performance status of the non-mechanical optical switch in real time.

[0010] Wherein, the optical switch and transmission protection integrated system further comprises an optical network recovery module, and the optical network recovery module is connected to the intelligent monitoring module;

[0011] The optical network recovery module is used to obtain the monitoring data of the intelligent monitoring module, formulate an adjustment plan according to the monitoring data, and automatically perform the adjustment operation.

[0012] Wherein, the compensation module comprises an optical amplifier unit and a digital signal processing unit, the optical amplifier unit is connected to the optical switch module, and the digital signal processing unit is connected to the optical amplifier unit;

[0013] The optical amplifier unit is used to compensate for the loss introduced by the non-mechanical optical switch and enhance the signal strength;

[0014] The digital signal processing unit is used to equalize, filter and enhance the signal to improve the signal quality.

[0015] Wherein, the intelligent monitoring module includes a monitoring unit and an analysis unit, the monitoring unit is respectively connected to the optical switch module, the optical amplifier unit and the digital signal processing unit, and the analysis unit is connected to the monitoring unit;

[0016] The monitoring unit is used to monitor the performance status of the non-mechanical optical switch in real time;

[0017] The analysis unit processes and analyzes the monitored data to evaluate the current status and performance of the system.

[0018] Wherein, the optical network recovery module includes a decision unit and an execution unit, the decision unit is connected to the analysis unit, and the execution unit is connected to the decision unit;

[0019] The decision-making unit is used to formulate an adjustment plan based on the analysis results and preset thresholds or strategies;

[0020] The execution unit is used to automatically execute the adjustment operation through a control interface or a software platform.

[0021] A method for integrating an optical switch and transmission protection comprises the following steps:

[0022] Deploy optical switch modules, optical amplifier units, and digital signal processing units, and connect intelligent monitoring modules to the system;

[0023] The intelligent monitoring module monitors the system in real time;

[0024] If performance anomalies are found, the intelligent monitoring module triggers the optical network recovery module to implement a recovery mechanism.

[0025] Wherein, the optical switch module, the optical amplifier unit and the digital signal processing unit are deployed, and the intelligent monitoring module is connected to the system, and the steps further include:

[0026] Deploy the selected non-mechanical optical switches at key nodes of the optical network to ensure that the input and output ports are properly connected to the optical fiber lines;

[0027] Install an optical amplifier unit after the optical switch;

[0028] Connecting the digital signal processing unit to the output end of the optical amplifier unit, receiving the amplified optical signal, and performing digital signal processing;

[0029] The intelligent monitoring module is connected to the system to establish a communication connection with the non-mechanical optical switch, the optical amplifier unit and the digital signal processing unit.

[0030] The present invention discloses an integrated system and method for optical switch and transmission protection. The optical switch module is responsible for performing physical switching or logical operation of signals in an optical network. A non-mechanical optical switch is used. The input and output ports are directly connected to the optical fiber line to receive and send optical signals. The compensation module is located after the non-mechanical optical switch and is used to compensate for the loss introduced by the optical switch, enhance the signal strength, and perform equalization, filtering and enhancement on the electrical signal to optimize the signal quality. The intelligent monitoring module is connected to the non-mechanical optical switch and the compensation module, and communicates and exchanges data through an interface or bus. The performance status of the optical switch (such as insertion loss, isolation, etc.) is monitored in real time, and the optical network recovery module is triggered according to the monitoring results to automatically switch the optical path or enable the backup optical path. The insertion loss and isolation problems of the non-mechanical optical switch are effectively reduced, the overall performance and reliability of the optical switch and transmission protection integrated system are improved, and the signal is ensured to have low attenuation and interference during transmission, thereby maintaining high quality and long-distance transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0032] Figure 1 It is a structural block diagram of the optical switch and transmission protection integrated system of the first embodiment of the present invention.

[0033] Figure 2is a structural block diagram of a compensation module according to the first embodiment of the present invention.

[0034] Figure 3 It is a structural block diagram of the intelligent monitoring module of the first embodiment of the present invention.

[0035] Figure 4 It is a structural block diagram of an optical network restoration module according to the first embodiment of the present invention.

[0036] Figure 5 It is a flowchart of the steps of the optical switch and transmission protection integration method of the second embodiment of the present invention.

[0037] In the figure: 101-optical switching module, 102-compensation module, 103-intelligent monitoring module, 104-optical network recovery module, 105-optical amplifier unit, 106-digital signal processing unit, 107-monitoring unit, 108-analysis unit, 109-decision-making unit, 110-execution unit. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0039] The first embodiment of the present application is:

[0040] See also Figures 1 to 4 ,in, Figure 1 It is a structural block diagram of the optical switch and transmission protection integrated system of the first embodiment of the present invention. Figure 2 is a structural block diagram of a compensation module according to the first embodiment of the present invention. Figure 3 It is a structural block diagram of the intelligent monitoring module of the first embodiment of the present invention. Figure 4 The present invention provides an optical switch and transmission protection integrated system, which includes an optical switch module 101, a compensation module 102, an intelligent monitoring module 103 and an optical network recovery module 104, wherein the compensation module 102 includes an optical amplifier unit 105 and a digital signal processing unit 106, the intelligent monitoring module 103 includes a monitoring unit 107 and an analysis unit 108, and the optical network recovery module 104 includes a decision unit 109 and an execution unit 110.

[0041] According to this specific implementation, the optical switch module is connected to the compensation module 102, and the intelligent monitoring module 103 is connected to the optical switch module and the compensation module 102 respectively;

[0042] The optical switch module 101 is composed of a plurality of non-mechanical optical switches and adopts a multi-stage optical switch design, and reduces the insertion loss of a single non-mechanical optical switch by cascading a plurality of non-mechanical optical switches;

[0043] The compensation module 102 is used to compensate for the loss introduced by the non-mechanical optical switch, enhance the signal strength, and equalize, filter and enhance the signal to improve the signal quality;

[0044] The intelligent monitoring module 103 is used to monitor the performance status of the non-mechanical optical switch in real time.

[0045] The optical switch module forms a multi-stage optical path conversion system by cascading multiple non-mechanical optical switches, that is, the output of one optical switch is used as the input of the next optical switch. Through the multi-stage design, the optical signal is transmitted between multiple optical switches, thereby dispersing and reducing the insertion loss of a single non-mechanical optical switch. The compensation module 102 is connected to the rear of the optical switch module 101, and the input end receives the attenuated signal from the optical switch. After amplification, the output end sends the enhanced signal to the next level of transmission line and converts it into an electrical signal for processing. The electrical signal is processed by equalization, filtering and enhancement to optimize the signal quality. The intelligent monitoring module 103 communicates and exchanges data through an interface or bus, and monitors the performance status of the optical switch in real time, such as insertion loss, isolation, etc.

[0046] Wherein, the optical network recovery module 104 is connected to the intelligent monitoring module 103;

[0047] The optical network restoration module 104 is used to obtain the monitoring data of the intelligent monitoring module 103, formulate an adjustment plan according to the monitoring data, and automatically perform the adjustment operation.

[0048] The optical network recovery module 104 is connected to the optical switch, optical fiber line and other key components to ensure that communication can be quickly restored when a failure occurs. When the intelligent monitoring module 103 detects an optical switch failure or performance degradation, the optical network recovery module 104 will trigger the switching of the backup optical path to ensure that the signal can continue to be transmitted.

[0049] Secondly, the optical amplifier unit 105 is connected to the optical switch module, and the digital signal processing unit 106 is connected to the optical amplifier unit 105;

[0050] The optical amplifier unit 105 is used to compensate for the loss introduced by the non-mechanical optical switch and enhance the signal strength;

[0051] The digital signal processing unit 106 is used to equalize, filter and enhance the signal to improve the signal quality.

[0052] The optical amplifier unit 105 is located after the optical switch, and is used to compensate for the loss introduced by the optical switch and enhance the signal strength. The input end receives the attenuated signal from the optical switch, and after amplification, the output end sends the enhanced signal to the next level transmission line. The digital signal processing unit 106 is connected to the output end of the optical amplifier module, receives the amplified optical signal, and converts it into an electrical signal for processing. The digital signal processing unit 106 performs equalization, filtering and enhancement on the electrical signal to optimize the signal quality. The processed electrical signal is then converted into an optical signal and sent to the next level transmission line.

[0053] At the same time, the monitoring unit 107 is connected to the optical switch module 101, the optical amplifier unit 105 and the digital signal processing unit 106 respectively, and the analysis unit 108 is connected to the monitoring unit 107;

[0054] The monitoring unit 107 is used to monitor the performance status of the non-mechanical optical switch in real time;

[0055] The analysis unit 108 processes and analyzes the monitored data to evaluate the current status and performance of the system.

[0056] The monitoring unit 107 is connected to the system, and establishes communication connections with the optical switch, the optical amplifier unit 105 and the digital signal processing unit 106 to realize real-time monitoring of the performance status of the optical switch, including indicators such as insertion loss and isolation. The analysis unit 108 processes and analyzes the collected data to evaluate the current status and performance of the system.

[0057] In addition, the decision unit 109 is connected to the analysis unit 108, and the execution unit 110 is connected to the decision unit 109;

[0058] The decision unit 109 is used to formulate an adjustment plan according to the analysis results and the preset threshold or strategy;

[0059] The execution unit 110 is used to automatically execute the adjustment operation through a control interface or a software platform.

[0060] The decision unit 109 formulates an adjustment plan according to the analysis results and the preset threshold or strategy, and the execution unit 110 automatically performs the adjustment operation through the control interface or software platform, such as adjusting the light source power, changing the modulation format, etc. After the adjustment is completed, the monitoring unit 107 monitors the system parameters and performance indicators again to verify whether the adjustment effect reaches the expected goal.

[0061] Using an optical switch and transmission protection integrated system of this embodiment, the selected non-mechanical optical switch is deployed at a key node of the optical network, ensuring that the input and output ports are correctly connected to the optical fiber line, installing the optical amplifier unit 105 after the optical switch to compensate for the loss introduced by the optical switch and improve the signal strength, connecting the digital signal processing unit 106 to the output end of the optical amplifier unit 105 to receive the amplified optical signal and perform digital signal processing, connecting the monitoring unit 107 to the system, establishing a communication connection with the optical switch, the optical amplifier unit 105 and the digital signal processing unit 106 to achieve real-time monitoring, and the analysis unit 108 processes and analyzes the monitored data to trigger the decision unit 109, which formulates an adjustment plan and realizes automatic management through the execution unit 110. The insertion loss and isolation problems of the non-mechanical optical switch are effectively reduced, the overall performance and reliability of the optical switch and transmission protection integrated system are improved, and the signal is ensured to have low attenuation and interference during transmission, thereby maintaining high quality and long-distance transmission.

[0062] The second embodiment of the present application is:

[0063] Based on the first embodiment, please refer to Figure 5 ,in, Figure 5 1 is a flowchart of the steps of the optical switch and transmission protection integration method of the second embodiment of the present invention. The optical switch and transmission protection integration method of this embodiment includes the following steps:

[0064] S201: deploying the optical switch module, the optical amplifier unit 105 and the digital signal processing unit 106, and connecting the intelligent monitoring module 103 to the system;

[0065] S202: The intelligent monitoring module 103 monitors the system in real time;

[0066] S203: If performance abnormality is found, the intelligent monitoring module 103 triggers the optical network recovery module 104 to implement a recovery mechanism.

[0067] Specifically, the selected non-mechanical optical switch is deployed at the key node of the optical network to ensure that the input and output ports are correctly connected to the optical fiber line. The optical amplifier unit 105 is installed after the optical switch to compensate for the loss introduced by the optical switch and improve the signal strength. The digital signal processing unit 106 is connected to the output end of the optical amplifier unit 105 to receive the amplified optical signal and perform digital signal processing. The intelligent monitoring module 103 is connected to the system to establish a communication connection with the non-mechanical optical switch, the optical amplifier unit 105 and the digital signal processing unit 106. The intelligent monitoring module 103 monitors the system in real time. If performance abnormalities are found, the intelligent monitoring module 103 triggers the optical network recovery module 104 to implement an automatic management recovery mechanism. The insertion loss and isolation problems of the non-mechanical optical switch are effectively reduced, the overall performance and reliability of the optical switch and transmission protection integrated system are improved, and the signal is ensured to have low attenuation and interference during transmission, thereby maintaining high quality and long-distance transmission.

[0068] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An optical switch and transmission protection integrated system, characterized in that: It includes an optical switch module, a compensation module and an intelligent monitoring module, wherein the optical switch module is connected to the compensation module, and the intelligent monitoring module is connected to the optical switch module and the compensation module respectively; The optical switch module is composed of a plurality of non-mechanical optical switches and adopts a multi-stage optical switch design, and reduces the insertion loss of a single non-mechanical optical switch by cascading a plurality of non-mechanical optical switches; The compensation module is used to compensate for the loss introduced by the non-mechanical optical switch, enhance the signal strength, and equalize, filter and enhance the signal to improve the signal quality; The intelligent monitoring module is used to monitor the performance status of the non-mechanical optical switch in real time.

2. The optical switch and transmission protection integrated system according to claim 1, characterized in that: The optical switch and transmission protection integrated system further comprises an optical network recovery module, and the optical network recovery module is connected to the intelligent monitoring module; The optical network recovery module is used to obtain the monitoring data of the intelligent monitoring module, formulate an adjustment plan according to the monitoring data, and automatically perform the adjustment operation.

3. The optical switch and transmission protection integrated system according to claim 1, characterized in that: The compensation module comprises an optical amplifier unit and a digital signal processing unit, wherein the optical amplifier unit is connected to the optical switch module, and the digital signal processing unit is connected to the optical amplifier unit; The optical amplifier unit is used to compensate for the loss introduced by the non-mechanical optical switch and enhance the signal strength; The digital signal processing unit is used to equalize, filter and enhance the signal to improve the signal quality.

4. The optical switch and transmission protection integrated system according to claim 3, characterized in that: The intelligent monitoring module includes a monitoring unit and an analysis unit, wherein the monitoring unit is connected to the optical switch module, the optical amplifier unit and the digital signal processing unit respectively, and the analysis unit is connected to the monitoring unit; The monitoring unit is used to monitor the performance status of the non-mechanical optical switch in real time; The analysis unit processes and analyzes the monitored data to evaluate the current status and performance of the system.

5. The optical switch and transmission protection integrated system according to claim 4, characterized in that: The optical network restoration module comprises a decision unit and an execution unit, wherein the decision unit is connected to the analysis unit, and the execution unit is connected to the decision unit; The decision-making unit is used to formulate an adjustment plan based on the analysis results and preset thresholds or strategies; The execution unit is used to automatically execute the adjustment operation through a control interface or a software platform.

6. An optical switch and transmission protection integration method, applicable to the optical switch and transmission protection integration system as claimed in claim 1, characterized in that: The following steps are involved: Deploy optical switch modules, optical amplifier units, and digital signal processing units, and connect intelligent monitoring modules to the system; The intelligent monitoring module monitors the system in real time; If performance anomalies are found, the intelligent monitoring module triggers the optical network recovery module to implement a recovery mechanism.

7. The optical switch and transmission protection integration method according to claim 6, characterized in that: Deploy an optical switch module, an optical amplifier unit, and a digital signal processing unit, and connect an intelligent monitoring module to the system, the steps further comprising: Deploy the selected non-mechanical optical switches at key nodes of the optical network to ensure that the input and output ports are properly connected to the optical fiber lines; Install an optical amplifier unit after the optical switch; Connecting the digital signal processing unit to the output end of the optical amplifier unit, receiving the amplified optical signal, and performing digital signal processing; The intelligent monitoring module is connected to the system to establish a communication connection with the non-mechanical optical switch, the optical amplifier unit and the digital signal processing unit.

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