A communication main and standby optical fiber digital control switching method and system based on MEMS technology

Abstract

The present invention relates to the field of electrical communication transmission, and in particular to a method and system for digital control switching of communication master and standby optical fibers based on MEMS technology. The method comprises the following steps: based on preset pressure data, pressure simulation is performed on the communication optical fiber and electrical signal conversion is performed at the same time to obtain pressure simulation data and pressure electrical signal data; two-dimensional composition of the optical fiber cross section of the communication optical fiber is performed to obtain a two-dimensional image of the optical fiber cross section; angle offset analysis of the pressure simulation signal is performed on the two-dimensional image of the optical fiber cross section to obtain an offset angle optical signal; influence curve construction is performed on the offset angle optical signal to obtain a signal angle offset influence curve; threshold analysis is performed on the signal angle offset influence curve to obtain a threshold value affecting communication pressure; threshold assessment is performed on the threshold value affecting communication pressure, and master and standby optical fiber switching processing is performed according to the assessment result. The present invention completes the switching of master and standby optical fiber data by analyzing the optical fiber pressure data.

Description

Technical Field

[0001] The present invention relates to the field of electrical communication transmission, and in particular to a method and system for digital control switching of communication main and standby optical fibers based on MEMS technology. Background Art

[0002] In traditional fiber-optic data communications, backup optical fibers are usually reserved between optical fiber digital transmission network devices. Backup optical fibers can effectively improve the redundancy of communication networks. Even if the main optical fiber fails, the backup optical fiber can still ensure the continuity of data transmission and avoid the impact of single-point failures on the overall network. However, there is no physical connection between these backup optical fibers and communication equipment. Therefore, when the main optical fiber fails, the communication transmission equipment at both ends of the failed optical fiber needs to be manually replaced. In contrast, the digital control switching method for communication main and backup optical fibers adopts an automated system design, which can independently monitor the working status of the optical fiber and perform switching operations according to preset switching strategies, thereby reducing manual intervention, reducing operation and maintenance costs, and improving network management efficiency. However, this digital control switching method cannot obtain the influencing factors of the optical fiber surrounding the optical fiber, nor can it execute relevant switching strategies based on the influencing factors of the optical fiber surrounding the optical fiber, such as the bearing pressure of the optical fiber. Summary of the invention

[0003] Based on this, it is necessary for the present invention to provide a method and system for digital control switching of communication master and standby optical fibers based on MEMS technology to solve at least one of the above technical problems.

[0004] To achieve the above object, a communication main and standby optical fiber digital control switching method based on MEMS technology comprises the following steps:

[0005] Step S1: obtaining preset pressure data, and performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; performing electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data;

[0006] Step S2: performing two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; performing cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; performing point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data;

[0007] Step S3: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the point optical fiber deformation curvature; performing signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal;

[0008] Step S4: performing an impact index analysis on the offset angle optical signal to obtain an offset communication impact index; constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve;

[0009] Step S5: Analyze the influence of the signal angle offset influence curve and the pressure simulation data on the pressure threshold affecting communication to obtain the pressure threshold affecting communication; obtain the bearing pressure of the communication optical fiber by the MEMS sensor to obtain the bearing pressure of the communication optical fiber; perform a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result; perform a primary-backup optical fiber switching process on the communication optical fiber and the pressure electrical signal data based on the pressure threshold assessment result to obtain a primary-backup optical fiber switching result.

[0010] The present invention establishes a quantitative relationship between pressure and electrical signals by simulating the influence of preset pressure on optical fiber, laying a foundation for the subsequent analysis of performance changes of optical fiber under pressure, and at the same time, obtaining the influencing factors of the optical fiber surrounding the optical fiber, such as the bearing pressure of the optical fiber, providing a reference electrical signal basis for real-time monitoring of the pressure state; performing two-dimensional composition of the optical fiber cross section of the communication optical fiber, and analyzing the cross-sectional area change based on the pressure simulation data, a pressure cross-sectional area change curve can be obtained, and further performing point deformation shape analysis on the optical fiber cross-sectional image to obtain multi-point deformation shape data, which intuitively shows the degree of influence of pressure on the physical structure of the optical fiber and the specific deformation mode, and provides intuitive deformation data support for subsequent optical performance analysis; performing optical fiber deformation curvature analysis on the optical fiber cross-sectional image based on the multi-point deformation shape data can accurately obtain the deformation curvature change of the optical fiber after being affected by pressure. At the same time, by analyzing the signal angle By measuring the degree of deviation, we can understand the deviation effect of optical fiber deformation on the propagation direction of optical signals, quantify the influence of pressure on the transmission path of optical signals, establish the connection between pressure and optical signal changes, and provide key parameters for evaluating the degree of impact on communication quality; by constructing the signal angle deviation impact curve, we can clearly show the changing trend of optical signal deviation under different pressure levels, and use the deviation communication impact index to evaluate the degree of impact on optical fiber communication quality, which provides a quantitative reference for determining the safe pressure threshold and realizes the quantitative evaluation of optical fiber communication quality; by analyzing the pressure threshold affecting communication and combining it with the actual optical fiber bearing pressure obtained by MEMS sensor, we can accurately judge whether the pressure currently borne by the optical fiber is within the safe range, and switch the main and standby optical fibers accordingly. According to the bearing pressure of the optical fiber, we can execute the relevant switching strategy to ensure the stability and reliability of communication and realize real-time monitoring and safety assurance of the optical fiber communication status.

[0011] Preferably, step S1 comprises the following steps:

[0012] Step S11: obtaining preset pressure data;

[0013] Step S12: performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data;

[0014] Step S13: Analyze the electrical characteristic change of the MEMS sensor on the pressure simulation data to obtain the electrical characteristic change data of the sensor;

[0015] Step S14: Perform pressure electrical signal analysis on the sensor electrical characteristic change data based on the pressure simulation data to obtain pressure electrical signal data.

[0016] The present invention establishes an accurate and comprehensive pressure data set by acquiring preset pressure data. By acquiring the preset pressure data, a series of simulation conditions can be set, which is conducive to covering different pressure levels and changes. Communication optical fiber pressure simulation based on the preset pressure data can accurately simulate the pressure condition of the optical fiber in a real environment, which is conducive to establishing a corresponding relationship between the optical fiber and pressure. The pressure simulation data is used for the analysis of the change of electrical characteristics of the MEMS sensor, which can reveal the specific impact of pressure changes on the performance of the sensor. By analyzing the changes in the resistance, capacitance, and resonant frequency parameters of the sensor under different pressures, reliable data can be provided in subsequent pressure measurements. By analyzing the electrical characteristics of the sensor, the design and calibration of the sensor can also be optimized, thereby improving the performance of the overall pressure detection system. Pressure electrical signal analysis is performed based on the pressure simulation data and the sensor electrical characteristic change data, and a direct mapping relationship between pressure and electrical signals is established. Through this analysis, the unique electrical signals generated by the sensor for different pressure levels can be determined, which helps to establish an accurate pressure electrical signal library and effectively interpret and quantify the output signal of the sensor.

[0017] Preferably, step S2 comprises the following steps:

[0018] Step S21: acquiring cross-sectional data of the communication optical fiber to obtain cross-sectional data of the communication optical fiber;

[0019] Step S22: performing two-dimensional optical fiber cross-section mapping on the communication optical fiber cross-section data to obtain a two-dimensional optical fiber cross-section image;

[0020] Step S23: analyzing the cross-sectional area change of the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve;

[0021] Step S24: performing multi-point pressure deformation simulation on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area variation curve to obtain multi-point pressure deformation degree data of the cross section;

[0022] Step S25: performing point deformation shape analysis on the cross-section multi-point pressure deformation degree data to obtain multi-point deformation shape data.

[0023] The present invention can accurately grasp the internal structure information of the optical fiber by acquiring cross-sectional data of the communication optical fiber, provide basic data for the subsequent analysis of the compressive deformation of the optical fiber, provide basic data for the subsequent optical fiber analysis and modeling, and ensure the accuracy of the subsequent research; the optical fiber cross-sectional data is composed in two dimensions to intuitively display the internal structure of the optical fiber, facilitate the study, observation and analysis of the geometric shape, size and relative position relationship of each component of the optical fiber, and lay the foundation for the subsequent optical fiber analysis and simulation; the cross-sectional area change analysis of the two-dimensional image of the optical fiber cross-section based on the pressure simulation data can quantify the influence of pressure on the optical fiber cross-section; the optical fiber cross-sectional area change curve is analyzed based on the pressure cross-sectional area change curve. Multi-point pressure deformation simulation of two-dimensional images can more accurately simulate the deformation of optical fibers under different pressures, and obtain multi-point pressure deformation degree data of the cross section, which is conducive to studying the performance of optical fibers under non-uniform pressure, including their deformation mode, stress distribution and local deformation; point deformation shape analysis of multi-point pressure deformation degree data of the cross section can identify the deformation mode at different positions on the optical fiber cross section. Through this identification, the geometric changes, surface deformation mode and strain distribution of the optical fiber after deformation can be determined. This detailed deformation shape analysis is conducive to a better understanding of the mechanical properties and deformation behavior of the optical fiber, thereby improving the accuracy and resolution of pressure detection.

[0024] Preferably, step S23 includes the following steps:

[0025] Step S231: setting a pressure load surface for the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain pressure load surface data;

[0026] Step S232: performing different load surface deformation pressure analysis on the two-dimensional image of the optical fiber cross section based on the pressure load surface data to obtain cross-sectional deformation pressure data;

[0027] Step S233: performing deformation area analysis on the two-dimensional image of the optical fiber cross section based on the pressure load surface data and the cross-sectional deformation pressure data to obtain pressure cross-sectional deformation area change data;

[0028] Step S234: Plotting the pressure cross-sectional deformation area change data based on the pressure simulation data to obtain a pressure deformation cross-sectional area change curve.

[0029] The present invention converts abstract pressure information into an intuitive two-dimensional pressure load surface through pressure simulation data, clearly showing the pressure size of each area of ​​the optical fiber cross section, so as to intuitively understand the distribution, size and concentrated area of ​​pressure, which is conducive to better subsequent pressure analysis and deformation prediction; by simulating the deformation of different load surfaces, the deformation response of the optical fiber cross section under different pressures can be obtained, which is conducive to understanding how the optical fiber responds to external pressure in practical applications, and the influence of pressure on the deformation of the optical fiber cross section, laying the foundation for subsequent deformation area analysis and deformation prediction; combining the pressure load surface data and the cross-section deformation pressure data to analyze the optical fiber cross section The deformation area of ​​the surface is obtained, and the pressure cross-sectional deformation area change data is obtained, which can quantify the degree of fiber cross-sectional deformation and provide key indicators for evaluating fiber performance; the pressure cross-sectional deformation area change curve is an important means to comprehensively present the data obtained in the previous steps. The curve can intuitively show the relationship between pressure and deformation area, which is helpful for understanding the deformation trend under different pressures. Through this curve, we can have a deeper understanding of the deformation behavior of the fiber cross-section under different pressures, so as to better predict and control the deformation, and further optimize the design and application of the optical fiber. This curve is also the basis for subsequent more in-depth analysis and application, and has important reference significance.

[0030] Preferably, step S3 comprises the following steps:

[0031] Step S31: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position;

[0032] Step S32: inputting a stable frequency signal to the communication optical fiber to obtain an optical fiber stable signal;

[0033] Step S33: performing a mapping signal angle analysis on the two-dimensional image of the optical fiber cross section based on the optical fiber stable signal to obtain the optical fiber cross section signal angle;

[0034] Step S34: performing optical signal angle deviation analysis on the optical fiber cross-section signal angle based on the optical fiber deformation curvature at the point position to obtain optical signal angle deviation data;

[0035] Step S35: performing angle deviation analysis on the optical fiber stable signal based on the optical signal angle deviation data and the optical fiber cross-section signal angle to obtain a deviation angle optical signal.

[0036] The present invention quantifies the bending degree of the optical fiber at different positions by analyzing the two-dimensional image of the optical fiber cross section and the deformation data at multiple points, and obtains the deformation curvature of each point. This lays the foundation for the subsequent analysis of the propagation characteristics of the optical signal in the curved optical fiber, quantifies and intuitively represents the deformation degree of the optical fiber, and provides a reliable basis for judging whether the optical fiber has abnormal deformation; a stable signal of known frequency is input into the optical fiber as a reference signal for subsequent analysis. By analyzing the changes of the stable signal after passing through the deformed optical fiber, the influence of the optical fiber deformation on the signal transmission can be accurately measured, the interference of the external environment on the optical fiber signal can be effectively eliminated, and the signal-to-noise ratio of the optical fiber signal can be improved, thereby improving the accuracy of subsequent signal analysis; the stable signal is combined with the two-dimensional image of the optical fiber cross section, the propagation direction of the signal at different positions of the optical fiber is analyzed, the signal angle of the optical fiber cross section is obtained, and the angle information of the optical fiber stable signal in the optical fiber cross section is accurately obtained, providing a reliable angle reference for the subsequent analysis of the optical signal angle deviation; the influence of the optical fiber deformation curvature on the optical signal propagation angle is analyzed to obtain the optical signal angle deviation data, which can quantify the change in the optical signal propagation direction caused by the optical fiber deformation, and can accurately quantify the degree of influence of the optical fiber deformation on the optical signal angle, providing an important basis for the subsequent judgment of whether the optical fiber has abnormal deformation or damage; the angle deviation analysis of the optical fiber stable signal is performed to finally obtain the deviation angle optical signal, simulate the actual output of the optical signal after passing through the deformed optical fiber, and can truly reflect the deviation angle optical signal of the internal condition of the optical fiber, providing an important basis for the subsequent optical fiber health status monitoring and fault diagnosis.

[0037] Preferably, step S31 includes the following steps:

[0038] Step S311: performing point-to-plane mapping on the multi-point deformation shape data to obtain a point-to-plane deformation figure;

[0039] Step S312: performing deformation and displacement analysis on the point-position deformation plane graph to obtain point-position deformation and displacement data;

[0040] Step S313: performing deformation curvature analysis on the point deformation plane figure based on the point deformation displacement data to obtain image deformation curvature;

[0041] Step S314: performing curvature radius analysis on the image deformation curvature to obtain the deformation curvature radius;

[0042] Step S315: distinguishing the positive and negative curvatures of the deformation curvature radius to obtain positive and negative data of the deformation curvature;

[0043] Step S316: performing deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the image deformation curvature and the positive and negative data of the deformation curvature to obtain the deformation curvature of the optical fiber at a point.

[0044] By projecting the deformation information in space onto a plane, the present invention can more intuitively observe and analyze the deformation trend of the optical fiber, reduce the complexity of subsequent calculations, facilitate the subsequent analysis and processing of deformation displacement and curvature, and provide an intuitive graphic basis for judging the deformation of the optical fiber; by analyzing the displacement of each point on the plane figure relative to the original position, the deformation degree of the optical fiber at different positions can be accurately described, and the deformation displacement data can be accurately obtained, providing important parameters for the subsequent analysis of the deformation curvature, and providing a quantitative basis for judging the deformation anomaly; by analyzing the deformation displacement data of each point on the plane figure, the bending degree of the optical fiber at each position, that is, the image deformation curvature, is calculated, and the curvature information can be extracted from the displacement data, laying a foundation for the subsequent analysis of the optical fiber deformation curvature, and providing a curvature radius reference for judging the local deformation situation; the abstract deformation curvature is converted into a more intuitive curvature radius, It is easy to understand and apply. The size of the radius of curvature directly reflects the degree of optical fiber bending. It can quantify the degree of deformation curvature and obtain deformation curvature radius data, providing important parameters for distinguishing positive and negative curvatures and subsequent optical fiber deformation curvature analysis. It distinguishes the direction of optical fiber bending, providing a basis for subsequent analysis of the propagation characteristics of optical signals in different bending directions. Positive and negative curvatures represent the bending of optical fibers in different directions, respectively. It can accurately determine the direction of deformation curvature, providing an important basis for subsequent optical fiber deformation curvature analysis, and at the same time provide a reference for determining whether the optical fiber has abnormal deformation. It comprehensively considers the size and direction of deformation curvature, maps the analysis results of the two-dimensional plane figure back to the two-dimensional image of the optical fiber cross section, and obtains the deformation curvature of each point. It can intuitively present the deformation curvature of the optical fiber in the image, accurately obtain point optical fiber deformation curvature data, and provide an important reference for determining the health status of the optical fiber and fault diagnosis.

[0045] Preferably, step S4 comprises the following steps:

[0046] Step S41: performing optical signal loss analysis on the offset angle optical signal to obtain optical signal scattering loss data;

[0047] Step S42: acquiring the transmission path of the offset angle optical signal to obtain the offset signal transmission path;

[0048] Step S43: performing transmission delay analysis on the offset signal transmission path to obtain transmission delay data of the offset signal;

[0049] Step S44: performing communication influence weight matching on the optical signal scattering loss data and the offset signal transmission delay data to obtain the communication influence weight;

[0050] Step S45: performing an impact index analysis on the optical signal scattering loss data and the offset signal transmission delay data based on the communication impact weight to obtain an offset communication impact index;

[0051] Step S46: constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve.

[0052] By analyzing the intensity attenuation of the optical signal at the offset angle, the present invention can calculate the energy lost by the optical signal due to scattering during the transmission process, thereby judging the degree of influence of the optical fiber deformation on the signal transmission quality, so as to accurately obtain the optical signal scattering loss information, reflect the optical fiber transmission quality, and provide important parameters for the subsequent analysis of the transmission efficiency and optimization of the optical signal; the actual propagation path of the optical signal in the deformed optical fiber is determined, and the necessary information is provided for the subsequent analysis of the signal transmission delay, and the propagation route of the optical signal at the offset angle can be accurately grasped, and basic data is provided for the subsequent analysis of the transmission delay of the optical signal and the optimization of the transmission path; the signal transmission time change caused by the optical fiber deformation is quantified, and an important parameter is provided for evaluating the performance of the optical fiber communication system. Since the propagation path of the optical signal in the deformed optical fiber becomes longer, it will cause the time delay of the signal reaching the receiving end. By analyzing the offset signal transmission path, the magnitude of the signal transmission delay can be accurately calculated. The small size of the optical fiber deformation is beneficial for accurately obtaining the transmission delay data of the offset signal, and provides an important reference for the subsequent analysis of the real-time, synchronization and optimization of transmission efficiency of the optical signal; the influence of optical signal loss and transmission delay on communication quality is taken into account, which provides a basis for establishing a more accurate evaluation model, and can quantitatively analyze the influence of optical signal transmission quality on communication, and provide important parameters for the subsequent optimization of communication performance and improvement of communication efficiency; the influence of optical signal loss and transmission delay is quantified into an index, which more intuitively reflects the comprehensive influence of optical fiber deformation on communication quality, and can obtain the offset communication influence index of the optical signal, providing quantitative indicators for optimizing communication system performance and fault detection; a relationship curve between the degree of optical fiber deformation and the degree of communication quality degradation is established, which provides an intuitive tool for predicting and evaluating the influence of optical fiber deformation, and provides a visual analysis tool for optimizing optical fiber communication systems, improving transmission performance and improving communication quality.

[0053] Preferably, step S41 includes the following steps:

[0054] Step S411: positioning the optical fiber reflection point of the offset angle optical signal to obtain the offset optical fiber reflection point;

[0055] Step S412: performing optical fiber node division on the offset optical fiber reflection point to obtain the offset optical fiber division node;

[0056] Step S413: Plotting a signal scattering spectrum of the offset optical fiber division node to obtain a signal scattering spectrum;

[0057] Step S414: performing scattered signal loss analysis on the signal scattering spectrum to obtain optical signal scattering loss data.

[0058] The present invention causes optical signals to deviate from the normal propagation path through optical fiber deformation and reflect at the bend. By analyzing the offset angle optical signal, these reflection points can be accurately identified, and the reflection source of the offset angle optical signal can be quickly locked, providing basic data for subsequent analysis of optical fiber node division and scattering loss; due to different degrees of deformation at different positions, the loss of optical signals in different segments is also different. By segmenting the optical fiber, the loss characteristics of each segment of optical fiber can be analyzed more carefully, and the optical fiber reflection points can be classified and located, providing accurate node information for subsequent signal scattering spectrum analysis, and improving the accuracy of scattering loss analysis; analyzing the scattering characteristics of the optical signal at each reflection point is used to quantify It provides a data basis for optical signal loss. Since optical signals of different wavelengths have different scattering characteristics in optical fibers, the loss of optical signals of different wavelengths can be analyzed by drawing signal scattering spectra. It can intuitively present the energy distribution of optical signals in different node segments of optical fibers, and provide visual data for analyzing the scattering loss, attenuation characteristics and abnormal conditions of optical signals. It quantifies the scattering loss of optical signals at each reflection point, and provides accurate data for evaluating the degree of degradation of optical fiber communication quality. By analyzing the loss of optical signals of different wavelengths, the total scattering loss can be calculated, and the degree of scattering loss of optical signals can be quantified, providing important parameters for judging the quality of optical fiber transmission, optimizing optical fiber communication systems and fault detection.

[0059] Preferably, step S5 comprises the following steps:

[0060] Step S51: constructing a model for the signal angle deviation influence curve and the pressure simulation data to obtain a pressure influence communication model;

[0061] Step S52: analyzing the pressure impact communication model to obtain the pressure impact communication threshold;

[0062] Step S53: acquiring the bearing pressure of the communication optical fiber using a MEMS sensor to obtain the bearing pressure of the communication optical fiber;

[0063] Step S54: performing a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result;

[0064] Step S55: If the pressure threshold assessment result is that the communication optical fiber carrying pressure is less than the pressure threshold affecting communication, no processing is performed;

[0065] Step S56: if the pressure threshold assessment result is that the communication optical fiber carrying pressure is greater than or equal to the pressure threshold affecting communication, then pressure threshold electric signal sharing is performed on the pressure electric signal data based on the pressure threshold affecting communication to obtain a pressure threshold electric signal;

[0066] Step S57: converting the communication optical fiber into a warning signal based on the pressure threshold electrical signal to obtain a communication-affecting warning signal;

[0067] Step S58: Performing a primary-backup optical fiber switching process on the communication optical fiber based on the communication-affecting warning signal to obtain a primary-backup optical fiber switching result.

[0068] By analyzing the influence curve of the optical signal angle deviation under different pressures, the present invention can construct a model to link the optical fiber deformation with the external pressure, establish a quantitative relationship between the pressure and the degree of communication quality degradation, and can quantitatively analyze the degree and characteristics of the influence of pressure on optical fiber communication, providing a scientific basis for optimizing the optical fiber communication system and the setting of the pressure threshold; by analyzing the pressure effect communication model, a pressure value corresponding to the acceptable lower limit of the communication quality can be found, which is set as the warning threshold, and a critical pressure value is determined. When the external pressure exceeds this value, the optical fiber communication quality will significantly decline, providing an important reference for subsequent pressure monitoring and early warning; by integrating a MEMS pressure sensor on the optical fiber, the current pressure value of the optical fiber can be obtained in real time, and the external pressure of the optical fiber can be monitored in real time, providing data for subsequent judgment on whether to trigger an early warning, and ensuring the safety and stability of the optical fiber communication system; by comparing the real-time pressure data with the pressure threshold obtained by the previous analysis, it can be judged whether the current optical fiber is in a safe working state, and the optical fiber can be found in time. Whether the bearing pressure reaches or exceeds the threshold provides a basis for the subsequent generation of early warning signals and fiber protection; when the real-time monitored pressure value is lower than the early warning threshold, it indicates that the fiber-optic communication is not significantly affected and the system can continue to work normally, ensuring that the system will not issue false alarms under normal circumstances, avoiding unnecessary waste of resources and system interruptions; when the real-time monitored pressure value exceeds the early warning threshold, it indicates that the quality of fiber-optic communication is affected, and the system needs to pass this information to the subsequent modules in the form of electrical signals, convert the information of excessive pressure into electrical signals, and provide a signal source for the subsequent triggering of early warning and protection mechanisms, so that timely countermeasures can be taken; by converting electrical signals into specific early warning signals, the reliability and response speed of the system can be improved, and the changes in the fiber-optic bearing pressure can be converted into early warning signals, providing timely and accurate input for fiber protection and master-slave switching; by pre-setting the master-slave fiber switching mechanism, the communication interruption caused by fiber damage can be minimized, and countermeasures can be taken when the pressure impact exceeds the threshold to ensure the continuous and stable operation of the fiber-optic communication system.

[0069] Preferably, the present invention further provides a communication master-slave optical fiber digital control switching system based on MEMS technology, which is used to execute the communication master-slave optical fiber digital control switching method based on MEMS technology as described above. The communication master-slave optical fiber digital control switching system based on MEMS technology includes:

[0070] The pressure simulation module is used to obtain preset pressure data, and perform pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; and perform electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data;

[0071] The pressure simulation deformation module is used to perform two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; perform cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; perform point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data;

[0072] The deformation offset optical signal analysis module is used to perform optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position; perform signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal;

[0073] The signal offset impact module is used to analyze the impact index of the offset angle optical signal to obtain the offset communication impact index; construct a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain the signal angle offset impact curve;

[0074] The main and standby optical fiber switching module is used to analyze the impact curve of signal angle deviation and pressure simulation data on communication pressure threshold, and obtain the impact communication pressure threshold; obtain the communication optical fiber bearing pressure by MEMS sensor, and obtain the communication optical fiber bearing pressure; perform threshold assessment on the impact communication pressure threshold based on pressure simulation data, and obtain the pressure threshold assessment result; perform main and standby optical fiber switching processing on the communication optical fiber and pressure electrical signal data based on the pressure threshold assessment result, and obtain the main and standby optical fiber switching result.

[0075] In summary, the present invention provides a communication master-standby optical fiber digital control switching system based on MEMS technology. The communication master-standby optical fiber digital control switching system based on MEMS technology consists of a pressure simulation module, a pressure simulation deformation module, a deformation offset optical signal analysis module, a signal offset influence module, and a master-standby optical fiber switching module. It can realize any one of the communication master-standby optical fiber digital control switching methods based on MEMS technology described in the present invention, and is used to combine the operations between computer programs running on each module to realize any one of the communication master-standby optical fiber digital control switching methods based on MEMS technology. The internal structures of the system cooperate with each other, which can greatly reduce duplication of work and manpower investment, and can quickly and effectively provide a more accurate and efficient communication master-standby optical fiber digital control switching process, thereby simplifying the operation process of a communication master-standby optical fiber digital control switching system based on MEMS technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments thereof made with reference to the following drawings:

[0077] Figure 1 A schematic flow chart of the steps of a method for digitally controlling switching of a communication master and standby optical fiber based on MEMS technology of the present invention;

[0078] Figure 2 for Figure 1 Detailed step flow diagram of step S3;

[0079] Figure 3 for Figure 1 Detailed step flow diagram of step S4; DETAILED DESCRIPTION

[0080] The technical method of the present invention is described clearly and completely below in conjunction with the accompanying drawings. 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0081] In addition, the accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. The functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor methods and / or microcontroller methods.

[0082] It should be understood that, although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are used only to distinguish one unit from another unit. For example, without departing from the scope of the exemplary embodiments, the first unit may be referred to as the second unit, and similarly the second unit may be referred to as the first unit. The term "and / or" used herein includes any and all combinations of one or more of the listed associated items.

[0083] To achieve this, please refer to Figures 1 to 3 The present invention provides a communication master and standby optical fiber digital control switching method based on MEMS technology, comprising the following steps:

[0084] Step S1: obtaining preset pressure data, and performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; performing electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data;

[0085] Step S2: performing two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; performing cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; performing point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data;

[0086] Step S3: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the point optical fiber deformation curvature; performing signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal;

[0087] Step S4: performing an impact index analysis on the offset angle optical signal to obtain an offset communication impact index; constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve;

[0088] Step S5: Analyze the influence of the signal angle offset influence curve and the pressure simulation data on the pressure threshold affecting communication to obtain the pressure threshold affecting communication; obtain the bearing pressure of the communication optical fiber by the MEMS sensor to obtain the bearing pressure of the communication optical fiber; perform a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result; perform a primary-backup optical fiber switching process on the communication optical fiber and the pressure electrical signal data based on the pressure threshold assessment result to obtain a primary-backup optical fiber switching result.

[0089] In the embodiment of the present invention, please refer to Figure 1 As shown, it is a schematic diagram of the steps of a method for digitally controlling switching of a communication master and standby optical fiber based on MEMS technology of the present invention. In this example, the method for digitally controlling switching of a communication master and standby optical fiber based on MEMS technology includes the following steps:

[0090] Step S1: obtaining preset pressure data, and performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; performing electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data;

[0091] The embodiment of the present invention obtains different pressure values ​​and pressure data at corresponding time points from a database or sensor historical records, presets the pressure requirements for the pressure data, and obtains preset pressure data; uses finite element analysis software to establish a three-dimensional model of the communication optical fiber, and applies the preset pressure data to the model as a boundary condition, and uses the software to simulate the deformation of the optical fiber under different pressures to obtain pressure simulation data at each time point; uses the piezoelectric effect to convert the pressure simulation data into electrical signal data, for example, the simulated pressure data is input into a piezoresistive sensor model to obtain a corresponding resistance change, which is then converted into a voltage or current signal as pressure electrical signal data.

[0092] Step S2: performing two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; performing cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; performing point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data;

[0093] The embodiment of the present invention uses a microscope and fiber cross-section imaging technology to obtain a cross-sectional image of a communication optical fiber, and performs denoising, grayscale, and edge detection preprocessing on the obtained image to obtain a clear two-dimensional image of the optical fiber cross-section; based on the pressure simulation data, the area change of the optical fiber cross-section under different pressures is analyzed, and a pressure cross-sectional area change curve is drawn; based on the pressure cross-sectional area change curve, the displacement changes of multiple points on the optical fiber cross-section are analyzed, for example, the change in the coordinates of each point on the curve, to obtain multi-point deformation shape data.

[0094] Step S3: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the point optical fiber deformation curvature; performing signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal;

[0095] The embodiment of the present invention obtains the point optical fiber deformation curvature by calculating the rate of change of the slope of the line connecting two points based on the deformation shape data of multiple points, and plots the curvature change of each point into an image, so as to calculate the curvature change of each point on the optical fiber cross section; the deformation of the optical fiber will affect the propagation path of the optical signal therein, thereby causing the signal angle to shift. According to the point optical fiber deformation curvature, combined with optical simulation software, the propagation path of the optical signal in the deformed optical fiber is simulated, the deviation angle of the optical signal at each point is calculated, and the deviation angle optical signal is obtained.

[0096] Step S4: performing an impact index analysis on the offset angle optical signal to obtain an offset communication impact index; constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve;

[0097] The embodiment of the present invention analyzes the impact of the offset angle optical signal on the communication quality, such as signal strength attenuation and bit error rate increase, to establish a relationship between the offset angle optical signal and the communication quality index according to the relevant standards of the optical communication system, and exponentially fit the relationship to obtain the offset communication impact index; the offset communication impact index is matched with the offset angle optical signal to draw a signal angle offset impact curve.

[0098] Step S5: Analyze the influence of the signal angle offset influence curve and the pressure simulation data on the pressure threshold affecting communication to obtain the pressure threshold affecting communication; obtain the bearing pressure of the communication optical fiber by the MEMS sensor to obtain the bearing pressure of the communication optical fiber; perform a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result; perform a primary-backup optical fiber switching process on the communication optical fiber and the pressure electrical signal data based on the pressure threshold assessment result to obtain a primary-backup optical fiber switching result.

[0099] The embodiment of the present invention determines the critical offset angle that affects the communication quality through the signal angle offset influence curve, that is, when the offset angle exceeds the critical value, the communication quality will not be able to meet the requirements; in combination with the pressure simulation data, the pressure value corresponding to the critical offset angle is found, that is, the pressure threshold that affects the communication; the MEMS sensor is used to monitor the bearing pressure of the communication optical fiber in real time, and the communication optical fiber bearing pressure data is obtained; the data is compared with the pressure threshold that affects the communication, and it is determined whether the current pressure exceeds the threshold, and the pressure threshold assessment result is obtained; if the pressure exceeds the threshold, the communication optical fiber is switched between the main and backup optical fibers according to the pressure threshold assessment result, and the signal is switched from the main optical fiber to the backup optical fiber through the optical switch to ensure the normal operation of the communication link, and the main and backup optical fiber switching result is obtained.

[0100] The present invention establishes a quantitative relationship between pressure and electrical signals by simulating the influence of preset pressure on optical fiber, laying a foundation for the subsequent analysis of performance changes of optical fiber under pressure, and at the same time, obtaining the influencing factors of the optical fiber surrounding the optical fiber, such as the bearing pressure of the optical fiber, providing a reference electrical signal basis for real-time monitoring of the pressure state; performing two-dimensional composition of the optical fiber cross section of the communication optical fiber, and analyzing the cross-sectional area change based on the pressure simulation data, a pressure cross-sectional area change curve can be obtained, and further performing point deformation shape analysis on the optical fiber cross-sectional image to obtain multi-point deformation shape data, which intuitively shows the degree of influence of pressure on the physical structure of the optical fiber and the specific deformation mode, and provides intuitive deformation data support for subsequent optical performance analysis; performing optical fiber deformation curvature analysis on the optical fiber cross-sectional image based on the multi-point deformation shape data can accurately obtain the deformation curvature change of the optical fiber after being affected by pressure. At the same time, by analyzing the signal angle By measuring the degree of deviation, we can understand the deviation effect of optical fiber deformation on the propagation direction of optical signals, quantify the influence of pressure on the transmission path of optical signals, establish the connection between pressure and optical signal changes, and provide key parameters for evaluating the degree of impact on communication quality; by constructing the signal angle deviation impact curve, we can clearly show the changing trend of optical signal deviation under different pressure levels, and use the deviation communication impact index to evaluate the degree of impact on optical fiber communication quality, which provides a quantitative reference for determining the safe pressure threshold and realizes the quantitative evaluation of optical fiber communication quality; by analyzing the pressure threshold affecting communication and combining it with the actual optical fiber bearing pressure obtained by MEMS sensor, we can accurately judge whether the pressure currently borne by the optical fiber is within the safe range, and switch the main and standby optical fibers accordingly. According to the bearing pressure of the optical fiber, we can execute the relevant switching strategy to ensure the stability and reliability of communication and realize real-time monitoring and safety assurance of the optical fiber communication status.

[0101] Preferably, step S1 comprises the following steps:

[0102] Step S11: obtaining preset pressure data;

[0103] The embodiment of the present invention determines the range and accuracy of pressure simulation required and selects a suitable source of preset pressure data. It can obtain historical pressure data from a database, and manually set a series of pressure simulation ranges and accuracy as preset pressure data according to the optical fiber communication conditions to form a preset pressure data set.

[0104] Step S12: performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data;

[0105] The embodiment of the present invention uses finite element analysis software to establish a three-dimensional model including communication optical fiber and MEMS sensor. The model needs to accurately describe the geometric structure and material properties of the optical fiber and the sensor, apply preset pressure data to the model as boundary conditions, simulate the deformation of the optical fiber under different pressures, set appropriate grid density and calculation parameters, and obtain pressure simulation data corresponding to each preset pressure value.

[0106] Step S13: Analyze the electrical characteristic change of the MEMS sensor on the pressure simulation data to obtain the electrical characteristic change data of the sensor;

[0107] The embodiment of the present invention determines the key electrical characteristic parameters of the MEMS sensor used, such as the capacitance value of the capacitive sensor, based on the type of MEMS sensor used, and analyzes the deformation of the MEMS sensor under different pressures, especially the deformation of the sensitive structural part, based on the acquired pressure simulation data. For example, for the capacitive sensor, the changes in the spacing between the capacitor plates and the effective area are analyzed, and the sensor electrical characteristic change data corresponding to each preset pressure value is calculated by establishing a relationship between the sensor electrical characteristic parameters and the deformation.

[0108] Step S14: Perform pressure electrical signal analysis on the sensor electrical characteristic change data based on the pressure simulation data to obtain pressure electrical signal data.

[0109] The embodiments of the present invention convert the sensor electrical characteristic change data into electrical signal data according to the output characteristics of the MEMS sensor. For example, for a capacitive sensor, the corresponding frequency or voltage change can be calculated based on its capacitance change and measurement circuit as pressure electrical signal data, and finally the pressure electrical signal data corresponding to the preset pressure data is obtained.

[0110] The present invention establishes an accurate and comprehensive pressure data set by acquiring preset pressure data. By acquiring the preset pressure data, a series of simulation conditions can be set, which is conducive to covering different pressure levels and changes. Communication optical fiber pressure simulation based on the preset pressure data can accurately simulate the pressure condition of the optical fiber in a real environment, which is conducive to establishing a corresponding relationship between the optical fiber and pressure. The pressure simulation data is used for the analysis of the change of electrical characteristics of the MEMS sensor, which can reveal the specific impact of pressure changes on the performance of the sensor. By analyzing the changes in the resistance, capacitance, and resonant frequency parameters of the sensor under different pressures, reliable data can be provided in subsequent pressure measurements. By analyzing the electrical characteristics of the sensor, the design and calibration of the sensor can also be optimized, thereby improving the performance of the overall pressure detection system. Pressure electrical signal analysis is performed based on the pressure simulation data and the sensor electrical characteristic change data, and a direct mapping relationship between pressure and electrical signals is established. Through this analysis, the unique electrical signals generated by the sensor for different pressure levels can be determined, which helps to establish an accurate pressure electrical signal library and effectively interpret and quantify the output signal of the sensor.

[0111] Preferably, step S2 comprises the following steps:

[0112] Step S21: acquiring cross-sectional data of the communication optical fiber to obtain cross-sectional data of the communication optical fiber;

[0113] The embodiment of the present invention cuts the communication optical fiber with a fiber cleaver, images it with an optical microscope, adjusts the microscope to obtain a clear image of the optical fiber cross section, and saves it as a digital image file. The image file contains the geometric shape, size and material distribution information of the optical fiber cross section, thereby constituting the communication optical fiber cross section data.

[0114] Step S22: performing two-dimensional optical fiber cross-section mapping on the communication optical fiber cross-section data to obtain a two-dimensional optical fiber cross-section image;

[0115] The embodiment of the present invention performs denoising preprocessing on the image by using image processing software to improve the clarity of the image, uses edge detection image segmentation technology to separate the optical fiber cross section, extracts the geometric shape information of the optical fiber cross section according to the segmentation result, calculates the corresponding geometric parameters, and draws the extracted geometric information into a two-dimensional image of the optical fiber cross section.

[0116] Step S23: analyzing the cross-sectional area change of the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve;

[0117] The embodiment of the present invention obtains the optical fiber cross-sectional area change data under different pressures through finite element analysis software simulation, as well as the two-dimensional image of the optical fiber cross-section, to establish the relationship between pressure and optical fiber cross-sectional area change, and uses the exponential curve fitting method to find the function expression describing the relationship between the two, and draws the pressure cross-sectional area change curve based on the fitted function expression.

[0118] Step S24: performing multi-point pressure deformation simulation on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area variation curve to obtain multi-point pressure deformation degree data of the cross section;

[0119] The embodiment of the present invention divides the two-dimensional image of the optical fiber cross-section into multiple discrete points by using a uniform grid division method, substitutes the pressure value into the fitting function according to the pressure cross-sectional area change curve, calculates the corresponding cross-sectional area change, and then calculates the displacement change of each point according to the geometric relationship, and adds the displacement change of each point to the initial coordinate to obtain the new coordinates of the point under different pressures, that is, the multi-point pressure deformation degree data of the cross-section.

[0120] Step S25: performing point deformation shape analysis on the cross-section multi-point pressure deformation degree data to obtain multi-point deformation shape data.

[0121] The embodiment of the present invention analyzes the pressure deformation degree data of multiple points on the cross-section, extracts the deformation characteristic information of each point, such as displacement, deformation direction, and deformation angle, to calculate the displacement vector of each point under different pressures, and performs statistical analysis on it. According to the displacement changes between adjacent points, the strain distribution of the optical fiber cross-section is calculated, and the deformation characteristic information is organized into multi-point deformation shape data.

[0122] The present invention can accurately grasp the internal structure information of the optical fiber by acquiring cross-sectional data of the communication optical fiber, provide basic data for the subsequent analysis of the compressive deformation of the optical fiber, provide basic data for the subsequent optical fiber analysis and modeling, and ensure the accuracy of the subsequent research; the optical fiber cross-sectional data is composed in two dimensions to intuitively display the internal structure of the optical fiber, facilitate the study, observation and analysis of the geometric shape, size and relative position relationship of each component of the optical fiber, and lay the foundation for the subsequent optical fiber analysis and simulation; the cross-sectional area change analysis of the two-dimensional image of the optical fiber cross-section based on the pressure simulation data can quantify the influence of pressure on the optical fiber cross-section; the optical fiber cross-sectional area change curve is analyzed based on the pressure cross-sectional area change curve. Multi-point pressure deformation simulation of two-dimensional images can more accurately simulate the deformation of optical fibers under different pressures, and obtain multi-point pressure deformation degree data of the cross section, which is conducive to studying the performance of optical fibers under non-uniform pressure, including their deformation mode, stress distribution and local deformation; point deformation shape analysis of multi-point pressure deformation degree data of the cross section can identify the deformation mode at different positions on the optical fiber cross section. Through this identification, the geometric changes, surface deformation mode and strain distribution of the optical fiber after deformation can be determined. This detailed deformation shape analysis is conducive to a better understanding of the mechanical properties and deformation behavior of the optical fiber, thereby improving the accuracy and resolution of pressure detection.

[0123] Preferably, step S23 includes the following steps:

[0124] Step S231: setting a pressure load surface for the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain pressure load surface data;

[0125] The embodiment of the present invention applies pressure simulation data as boundary conditions to the two-dimensional image of the optical fiber cross section, sets the pressure load distribution of the optical fiber cross section, and generates the pressure value on each node as the pressure load surface data of the optical fiber cross section under different pressures.

[0126] Step S232: performing different load surface deformation pressure analysis on the optical fiber cross-section two-dimensional image based on the pressure load surface data to obtain cross-section deformation pressure data;

[0127] The embodiment of the present invention simulates and analyzes the deformation of the optical fiber cross section under different pressure load surfaces based on the pressure load surface data by calculating the displacement of each node. According to the simulation results, the deformation degree of each point on the optical fiber cross section under different pressure load surfaces, such as deformation displacement and deformation angle, is extracted to obtain the cross-sectional deformation pressure data.

[0128] Step S233: performing deformation area analysis on the two-dimensional image of the optical fiber cross section based on the pressure load surface data and the cross-sectional deformation pressure data to obtain pressure cross-sectional deformation area change data;

[0129] The embodiment of the present invention analyzes the area change of the optical fiber cross-section under different pressure load surfaces and the displacement vector of each node, calculates the displacement change of the boundary point of the optical fiber cross-section, and then calculates the change in the area of ​​the optical fiber cross-section. By analyzing the change in the area of ​​the optical fiber cross-section under different pressure load surfaces, the pressure cross-section deformation area change data is obtained.

[0130] Step S234: Plotting the pressure cross-sectional deformation area change data based on the pressure simulation data to obtain a pressure deformation cross-sectional area change curve.

[0131] The embodiment of the present invention uses drawing software to draw a pressure deformation cross-sectional area change curve by using the pressure value as the horizontal coordinate and the corresponding fiber cross-sectional area change amount as the vertical coordinate for the pressure cross-sectional deformation area change data and the fiber cross-sectional area change data under different pressures.

[0132] The present invention converts abstract pressure information into an intuitive two-dimensional pressure load surface through pressure simulation data, clearly showing the pressure size of each area of ​​the optical fiber cross section, so as to intuitively understand the distribution, size and concentrated area of ​​pressure, which is conducive to better subsequent pressure analysis and deformation prediction; by simulating the deformation of different load surfaces, the deformation response of the optical fiber cross section under different pressures can be obtained, which is conducive to understanding how the optical fiber responds to external pressure in practical applications, and the influence of pressure on the deformation of the optical fiber cross section, laying the foundation for subsequent deformation area analysis and deformation prediction; combining the pressure load surface data and the cross-section deformation pressure data to analyze the optical fiber cross section The deformation area of ​​the surface is obtained, and the pressure cross-sectional deformation area change data is obtained, which can quantify the degree of fiber cross-sectional deformation and provide key indicators for evaluating fiber performance; the pressure cross-sectional deformation area change curve is an important means to comprehensively present the data obtained in the previous steps. The curve can intuitively show the relationship between pressure and deformation area, which is helpful for understanding the deformation trend under different pressures. Through this curve, we can have a deeper understanding of the deformation behavior of the fiber cross-section under different pressures, so as to better predict and control the deformation, and further optimize the design and application of the optical fiber. This curve is also the basis for subsequent more in-depth analysis and application, and has important reference significance.

[0133] Preferably, step S3 comprises the following steps:

[0134] Step S31: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position;

[0135] Step S32: inputting a stable frequency signal to the communication optical fiber to obtain an optical fiber stable signal;

[0136] Step S33: performing a mapping signal angle analysis on the two-dimensional image of the optical fiber cross section based on the optical fiber stable signal to obtain the optical fiber cross section signal angle;

[0137] Step S34: performing optical signal angle deviation analysis on the optical fiber cross-section signal angle based on the optical fiber deformation curvature at the point position to obtain optical signal angle deviation data;

[0138] Step S35: performing angle deviation analysis on the optical fiber stable signal based on the optical signal angle deviation data and the optical fiber cross-section signal angle to obtain a deviation angle optical signal.

[0139] As an embodiment of the present invention, refer to Figure 2 As shown, Figure 1 Detailed step flow diagram of step S3 in the embodiment, step S3 includes the following steps:

[0140] Step S31: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position;

[0141] The embodiment of the present invention uses the central difference method to calculate the rate of change of the slope of the line connecting the adjacent points of each point before and after deformation, and then obtains the curvature change value of the point, and corresponds the curvature change value of each point with the coordinates of the point on the two-dimensional image of the optical fiber cross section to form point optical fiber deformation curvature data.

[0142] Step S32: inputting a stable frequency signal to the communication optical fiber to obtain an optical fiber stable signal;

[0143] The embodiment of the present invention ensures that the frequency, power and polarization state parameters of the input optical signal remain stable by using a stable laser light source, thereby obtaining a stable optical fiber signal.

[0144] Step S33: performing a mapping signal angle analysis on the two-dimensional image of the optical fiber cross section based on the optical fiber stable signal to obtain the optical fiber cross section signal angle;

[0145] The embodiment of the present invention simulates the propagation path of the optical fiber stable signal on the two-dimensional image of the optical fiber cross section, divides the two-dimensional image of the optical fiber cross section into multiple tiny grid units, each grid unit represents a tiny area of ​​the optical fiber cross section, calculates the propagation direction of the light in each grid unit according to the refractive index distribution of the optical fiber, and traces the propagation path of the light on the entire optical fiber cross section to obtain the light field distribution on the optical fiber cross section, analyzes the light field distribution, and calculates the signal angle of each point on the optical fiber cross section, that is, the angle between the propagation direction of the light at this point and the axis of the optical fiber.

[0146] Step S34: performing optical signal angle deviation analysis on the optical fiber cross-section signal angle based on the optical fiber deformation curvature at the point position to obtain optical signal angle deviation data;

[0147] The embodiment of the present invention calculates the propagation path offset of light in a bent optical fiber according to the optical fiber bending theory, converts it into an optical signal angle offset, and matches the curvature change value of each point with the signal angle offset of the point to obtain optical signal angle offset data.

[0148] Step S35: performing angle deviation analysis on the optical fiber stable signal based on the optical signal angle deviation data and the optical fiber cross-section signal angle to obtain a deviation angle optical signal.

[0149] The embodiment of the present invention performs angle offset analysis on the optical fiber stable signal based on the optical signal angle offset data and the optical fiber cross-section signal angle data, superimposes the signal angle offset of each point on the initial signal angle of the point, obtains the deformed signal angle, and corresponds all the deformed signal angles to the optical fiber stable signal to obtain the offset angle optical signal.

[0150] The present invention quantifies the bending degree of the optical fiber at different positions by analyzing the two-dimensional image of the optical fiber cross section and the deformation data at multiple points, and obtains the deformation curvature of each point. This lays the foundation for the subsequent analysis of the propagation characteristics of the optical signal in the curved optical fiber, quantifies and intuitively represents the deformation degree of the optical fiber, and provides a reliable basis for judging whether the optical fiber has abnormal deformation; a stable signal of known frequency is input into the optical fiber as a reference signal for subsequent analysis. By analyzing the changes of the stable signal after passing through the deformed optical fiber, the influence of the optical fiber deformation on the signal transmission can be accurately measured, the interference of the external environment on the optical fiber signal can be effectively eliminated, and the signal-to-noise ratio of the optical fiber signal can be improved, thereby improving the accuracy of subsequent signal analysis; the stable signal is combined with the two-dimensional image of the optical fiber cross section, the propagation direction of the signal at different positions of the optical fiber is analyzed, the signal angle of the optical fiber cross section is obtained, and the angle information of the optical fiber stable signal in the optical fiber cross section is accurately obtained, providing a reliable angle reference for the subsequent analysis of the optical signal angle deviation; the influence of the optical fiber deformation curvature on the optical signal propagation angle is analyzed to obtain the optical signal angle deviation data, which can quantify the change in the optical signal propagation direction caused by the optical fiber deformation, and can accurately quantify the degree of influence of the optical fiber deformation on the optical signal angle, providing an important basis for the subsequent judgment of whether the optical fiber has abnormal deformation or damage; the angle deviation analysis of the optical fiber stable signal is performed to finally obtain the deviation angle optical signal, simulate the actual output of the optical signal after passing through the deformed optical fiber, and can truly reflect the deviation angle optical signal of the internal condition of the optical fiber, providing an important basis for the subsequent optical fiber health status monitoring and fault diagnosis.

[0151] Preferably, step S31 includes the following steps:

[0152] Step S311: performing point-to-plane mapping on the multi-point deformation shape data to obtain a point-to-plane deformation figure;

[0153] The embodiment of the present invention selects a plane tangent to the optical fiber cross section and projects the multi-point deformation shape data, that is, the coordinate change of each point, onto a two-dimensional plane, uses the projected two-dimensional coordinates as new point coordinates, and retains the corresponding deformation information, such as deformation direction and deformation amount, to generate a point deformation plane figure.

[0154] Step S312: performing deformation and displacement analysis on the point-position deformation plane graph to obtain point-position deformation and displacement data;

[0155] The embodiment of the present invention analyzes the displacement of each point in the point deformation plane figure relative to its initial position, calculates the displacement vector of the point on the two-dimensional plane, and corresponds the displacement vector of each point with its coordinates in the point deformation plane figure to form point deformation displacement data.

[0156] Step S313: performing deformation curvature analysis on the point deformation plane figure based on the point deformation displacement data to obtain image deformation curvature;

[0157] The embodiment of the present invention calculates the curvature at each point on the point-deformed plane figure by using numerical differential equations, selects the point and several neighboring points around it, fits a local curve based on the coordinates and displacement information of these points, and calculates the curvature value of the curve at the point, and finally obtains the image deformation curvature.

[0158] Step S314: performing curvature radius analysis on the image deformation curvature to obtain the deformation curvature radius;

[0159] In the embodiment of the present invention, the radius of curvature is the reciprocal of the curvature, which indicates the radius of the circle corresponding to the curvature, and the radius of curvature of each point is matched with its coordinates in the point deformation plane figure to form deformation curvature radius data.

[0160] Step S315: distinguishing the positive and negative curvatures of the deformation curvature radius to obtain positive and negative data of the deformation curvature;

[0161] The embodiment of the present invention defines the coordinate system of the optical fiber cross section, stipulates that the curvature direction is consistent with the positive direction of the coordinate axis as positive curvature, and vice versa as negative curvature, and corresponds the positive and negative curvature information of each point with its coordinates to form positive and negative deformation curvature data.

[0162] Step S316: performing deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the image deformation curvature and the positive and negative data of the deformation curvature to obtain the deformation curvature of the optical fiber at a point.

[0163] The embodiment of the present invention assigns the deformation curvature value and positive and negative information of each point on the two-dimensional image of the optical fiber cross section to the corresponding point on the point deformation plane figure and the two-dimensional image of the optical fiber cross section according to the coordinate correspondence of each point on the point deformation plane figure and the two-dimensional image of the optical fiber cross section, and finally obtains the point optical fiber deformation curvature.

[0164] By projecting the deformation information in space onto a plane, the present invention can more intuitively observe and analyze the deformation trend of the optical fiber, reduce the complexity of subsequent calculations, facilitate the subsequent analysis and processing of deformation displacement and curvature, and provide an intuitive graphic basis for judging the deformation of the optical fiber; by analyzing the displacement of each point on the plane figure relative to the original position, the deformation degree of the optical fiber at different positions can be accurately described, and the deformation displacement data can be accurately obtained, providing important parameters for the subsequent analysis of the deformation curvature, and providing a quantitative basis for judging the deformation anomaly; by analyzing the deformation displacement data of each point on the plane figure, the bending degree of the optical fiber at each position, that is, the image deformation curvature, is calculated, and the curvature information can be extracted from the displacement data, laying a foundation for the subsequent analysis of the optical fiber deformation curvature, and providing a curvature radius reference for judging the local deformation situation; the abstract deformation curvature is converted into a more intuitive curvature radius, It is easy to understand and apply. The size of the radius of curvature directly reflects the degree of optical fiber bending. It can quantify the degree of deformation curvature and obtain deformation curvature radius data, providing important parameters for distinguishing positive and negative curvatures and subsequent optical fiber deformation curvature analysis. It distinguishes the direction of optical fiber bending, providing a basis for subsequent analysis of the propagation characteristics of optical signals in different bending directions. Positive and negative curvatures represent the bending of optical fibers in different directions, respectively. It can accurately determine the direction of deformation curvature, providing an important basis for subsequent optical fiber deformation curvature analysis, and at the same time provide a reference for determining whether the optical fiber has abnormal deformation. It comprehensively considers the size and direction of deformation curvature, maps the analysis results of the two-dimensional plane figure back to the two-dimensional image of the optical fiber cross section, and obtains the deformation curvature of each point. It can intuitively present the deformation curvature of the optical fiber in the image, accurately obtain point optical fiber deformation curvature data, and provide an important reference for determining the health status of the optical fiber and fault diagnosis.

[0165] Preferably, step S4 comprises the following steps:

[0166] Step S41: performing optical signal loss analysis on the offset angle optical signal to obtain optical signal scattering loss data;

[0167] Step S42: acquiring the transmission path of the offset angle optical signal to obtain the offset signal transmission path;

[0168] Step S43: performing transmission delay analysis on the offset signal transmission path to obtain transmission delay data of the offset signal;

[0169] Step S44: performing communication influence weight matching on the optical signal scattering loss data and the offset signal transmission delay data to obtain the communication influence weight;

[0170] Step S45: performing an impact index analysis on the optical signal scattering loss data and the offset signal transmission delay data based on the communication impact weight to obtain an offset communication impact index;

[0171] Step S46: constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve.

[0172] As an embodiment of the present invention, refer to Figure 3 As shown, Figure 1 Detailed step flow diagram of step S4 in FIG. 1 , in this embodiment, step S4 includes the following steps:

[0173] Step S41: performing optical signal loss analysis on the offset angle optical signal to obtain optical signal scattering loss data;

[0174] The embodiment of the present invention simulates the propagation process of the optical signal in the bent optical fiber by using the beam propagation method to simulate the numerical value, and calculates the power attenuation of the optical signal at different propagation distances, and associates the optical power attenuation value with the corresponding optical fiber cross-section position information to obtain the optical signal scattering loss data.

[0175] Step S42: acquiring the transmission path of the offset angle optical signal to obtain the offset signal transmission path;

[0176] The embodiment of the present invention uses a ray tracing method according to the offset angle optical signal data and the geometric structure parameters of the optical fiber to simulate the actual propagation path of the optical signal in the optical fiber, trace the key positions of the incident point, reflection point and exit point of the light on the optical fiber cross section, and record the propagation direction and distance of the light at each position, and finally obtain the offset signal transmission path.

[0177] Step S43: performing transmission delay analysis on the offset signal transmission path to obtain transmission delay data of the offset signal;

[0178] The embodiment of the present invention calculates the propagation time of the optical signal on each path according to the refractive index distribution of the optical fiber and the light propagation path, and accumulates the propagation time of all paths to obtain the total propagation time of the optical signal over the entire optical fiber length, and compares the total propagation time with the propagation time of the optical signal in the undeformed optical fiber to obtain the offset signal transmission delay data.

[0179] Step S44: performing communication influence weight matching on the optical signal scattering loss data and the offset signal transmission delay data to obtain the communication influence weight;

[0180] The embodiment of the present invention determines the weight ratio of the influence of optical signal scattering loss and offset signal transmission delay on communication quality, i.e., the communication influence weight, according to the performance indicator requirements of the optical communication system, such as bit error rate and transmission bandwidth.

[0181] Step S45: performing an impact index analysis on the optical signal scattering loss data and the offset signal transmission delay data based on the communication impact weight to obtain an offset communication impact index;

[0182] In the embodiment of the present invention, the optical signal scattering loss and the offset signal transmission delay are multiplied by corresponding weight values ​​respectively by using a linear weighted summation method, and then the offset communication impact index is accumulated.

[0183] Step S46: constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve.

[0184] The embodiment of the present invention constructs a signal angle offset impact curve by matching the acquired offset communication impact index with the offset angle optical signal, selects the offset angle of the offset angle optical signal as the horizontal coordinate, and uses the offset communication impact index as the vertical coordinate to draw a curve graph.

[0185] By analyzing the intensity attenuation of the optical signal at the offset angle, the present invention can calculate the energy lost by the optical signal due to scattering during the transmission process, thereby judging the degree of influence of the optical fiber deformation on the signal transmission quality, so as to accurately obtain the optical signal scattering loss information, reflect the optical fiber transmission quality, and provide important parameters for the subsequent analysis of the transmission efficiency and optimization of the optical signal; the actual propagation path of the optical signal in the deformed optical fiber is determined, and the necessary information is provided for the subsequent analysis of the signal transmission delay, and the propagation route of the optical signal at the offset angle can be accurately grasped, and basic data is provided for the subsequent analysis of the transmission delay of the optical signal and the optimization of the transmission path; the signal transmission time change caused by the optical fiber deformation is quantified, and an important parameter is provided for evaluating the performance of the optical fiber communication system. Since the propagation path of the optical signal in the deformed optical fiber becomes longer, it will cause the time delay of the signal reaching the receiving end. By analyzing the offset signal transmission path, the magnitude of the signal transmission delay can be accurately calculated. The small size of the optical fiber deformation is beneficial for accurately obtaining the transmission delay data of the offset signal, and provides an important reference for the subsequent analysis of the real-time, synchronization and optimization of transmission efficiency of the optical signal; the influence of optical signal loss and transmission delay on communication quality is taken into account, which provides a basis for establishing a more accurate evaluation model, and can quantitatively analyze the influence of optical signal transmission quality on communication, and provide important parameters for the subsequent optimization of communication performance and improvement of communication efficiency; the influence of optical signal loss and transmission delay is quantified into an index, which more intuitively reflects the comprehensive influence of optical fiber deformation on communication quality, and can obtain the offset communication influence index of the optical signal, providing quantitative indicators for optimizing communication system performance and fault detection; a relationship curve between the degree of optical fiber deformation and the degree of communication quality degradation is established, which provides an intuitive tool for predicting and evaluating the influence of optical fiber deformation, and provides a visual analysis tool for optimizing optical fiber communication systems, improving transmission performance and improving communication quality.

[0186] Preferably, step S41 includes the following steps:

[0187] Step S411: positioning the optical fiber reflection point of the offset angle optical signal to obtain the offset optical fiber reflection point;

[0188] The embodiment of the present invention can determine the position and reflection intensity of the optical fiber reflection point by analyzing the peak position and amplitude on the OTDR trajectory curve. When the optical fiber deformation causes the optical signal propagation path to change, the OTDR measurement result is calibrated and corrected according to the characteristics of the offset angle optical signal to accurately determine the position information of the offset optical fiber reflection point.

[0189] Step S412: performing optical fiber node division on the offset optical fiber reflection point to obtain the offset optical fiber division node;

[0190] The embodiment of the present invention divides the optical fiber into several independent nodes according to the position information of the offset optical fiber reflection point, the communication optical fiber and the preset node division rule, and divides the optical fiber into nodes of equal or unequal length according to the distance between adjacent reflection points.

[0191] Step S413: Plotting a signal scattering spectrum of the offset optical fiber division node to obtain a signal scattering spectrum;

[0192] In the embodiment of the present invention, a spectrum analyzer is used to measure the spectral distribution of the output optical signal of each offset optical fiber node, and a signal scattering spectrum is plotted. The deformation of the optical fiber will cause the optical signal to be scattered during the transmission process, so new frequency components will appear on the spectrum graph. The intensity and distribution of these frequency components are the scattering characteristics of the optical signal at the node.

[0193] Step S414: performing scattered signal loss analysis on the signal scattering spectrum to obtain optical signal scattering loss data.

[0194] The embodiment of the present invention calculates the theoretical scattering loss value of each node according to the Rayleigh scattering theory, and compares it with the actually measured scattering spectrum to obtain the additional scattering loss of the optical signal at the node, that is, the scattering loss caused by the optical fiber deformation.

[0195] The present invention causes optical signals to deviate from the normal propagation path through optical fiber deformation and reflect at the bend. By analyzing the offset angle optical signal, these reflection points can be accurately identified, and the reflection source of the offset angle optical signal can be quickly locked, providing basic data for subsequent analysis of optical fiber node division and scattering loss; due to different degrees of deformation at different positions, the loss of optical signals in different segments is also different. By segmenting the optical fiber, the loss characteristics of each segment of optical fiber can be analyzed more carefully, and the optical fiber reflection points can be classified and located, providing accurate node information for subsequent signal scattering spectrum analysis, and improving the accuracy of scattering loss analysis; analyzing the scattering characteristics of the optical signal at each reflection point is used to quantify It provides a data basis for optical signal loss. Since optical signals of different wavelengths have different scattering characteristics in optical fibers, the loss of optical signals of different wavelengths can be analyzed by drawing signal scattering spectra. It can intuitively present the energy distribution of optical signals in different node segments of optical fibers, and provide visual data for analyzing the scattering loss, attenuation characteristics and abnormal conditions of optical signals. It quantifies the scattering loss of optical signals at each reflection point, and provides accurate data for evaluating the degree of degradation of optical fiber communication quality. By analyzing the loss of optical signals of different wavelengths, the total scattering loss can be calculated, and the degree of scattering loss of optical signals can be quantified, providing important parameters for judging the quality of optical fiber transmission, optimizing optical fiber communication systems and fault detection.

[0196] Preferably, step S5 comprises the following steps:

[0197] Step S51: constructing a model for the signal angle deviation influence curve and the pressure simulation data to obtain a pressure influence communication model;

[0198] The embodiment of the present invention combines the signal angle offset impact curve and the pressure simulation data, uses curve fitting to take the pressure as the input variable, and takes the offset communication impact index or other communication quality indicators as the output variable, constructs a functional relationship between the two, and establishes a mathematical model between pressure and communication quality, namely, a pressure impact communication model.

[0199] Step S52: analyzing the pressure impact communication model to obtain the pressure impact communication threshold;

[0200] The embodiment of the present invention utilizes the pressure-impact communication model and inputs different pressure values ​​to simulate and predict the changing trend of the optical fiber communication quality. By analyzing the simulation results, a critical pressure value and a maximum acceptable offset communication impact index and bit error rate are determined as the communication quality critical value. When the environmental pressure exceeds the threshold, the optical fiber communication quality will significantly decrease, resulting in communication interruption, that is, affecting the communication pressure threshold.

[0201] Step S53: acquiring the bearing pressure of the communication optical fiber using a MEMS sensor to obtain the bearing pressure of the communication optical fiber;

[0202] The embodiment of the present invention installs a MEMS sensor on the communication optical fiber, and the sensor can monitor the pressure change of the optical fiber in real time. The sensor converts the pressure signal into an electrical signal, and calculates the corresponding frequency or voltage change as the pressure electrical signal data according to the change of its sensor capacitance and the measurement circuit. By collecting and converting the electrical signal, the real-time value of the pressure carried by the communication optical fiber can be obtained.

[0203] Step S54: performing a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result;

[0204] The embodiment of the present invention compares the communication optical fiber carrying pressure with the threshold value of the pressure affecting communication to determine whether the current pressure exceeds the threshold and obtains a pressure threshold assessment result. If the pressure exceeds the threshold, it indicates that the communication quality of the optical fiber is affected and corresponding measures need to be taken for intervention.

[0205] Step S55: If the pressure threshold assessment result is that the communication optical fiber carrying pressure is less than the pressure threshold affecting communication, no processing is performed;

[0206] The embodiment of the present invention analyzes the pressure threshold assessment result. If the pressure threshold assessment result is that the communication optical fiber carrying pressure is less than the pressure threshold affecting communication, it means that the current pressure environment will not affect the optical fiber communication, and the system does not need to perform any operation to maintain normal communication status.

[0207] Step S56: if the pressure threshold assessment result is that the communication optical fiber carrying pressure is greater than or equal to the pressure threshold affecting communication, then pressure threshold electric signal sharing is performed on the pressure electric signal data based on the pressure threshold affecting communication to obtain a pressure threshold electric signal;

[0208] The embodiment of the present invention analyzes the pressure threshold assessment result. If the pressure threshold assessment result is that the communication optical fiber carrying pressure is greater than or equal to the pressure threshold affecting communication, the system will analyze and process the pressure electrical signal data according to the pressure threshold affecting communication. It is necessary to process the pressure electrical signal data according to the pressure threshold affecting communication, compare the pressure electrical signal data with the electrical signal value corresponding to the pressure threshold affecting communication, and extract the part exceeding the threshold as the pressure threshold electrical signal.

[0209] Step S57: converting the communication optical fiber into a warning signal based on the pressure threshold electrical signal to obtain a communication-affecting warning signal;

[0210] The embodiment of the present invention amplifies the acquired pressure threshold electrical signal, realizes the early warning signal conversion through the signal conversion module in the communication optical fiber, inputs the pressure threshold electrical signal to the module, and converts it into a pulse signal early warning signal of a specific frequency, and transmits the early warning signal to the location of the early warning measure implementation module.

[0211] Step S58: Performing a primary-backup optical fiber switching process on the communication optical fiber based on the communication-affecting warning signal to obtain a primary-backup optical fiber switching result.

[0212] The embodiment of the present invention confirms the degree of impact of the main line optical fiber on communication through the indication of the obtained warning signal, and at the same time performs availability detection on the backup optical fiber line to be replaced. When the detection result meets the impact of the main line communication and the backup line communication is normal, the system automatically switches the communication line from the main optical fiber to the backup optical fiber; when the pressure of the main optical fiber line returns to normal, the system can automatically switch the communication line back to the main optical fiber.

[0213] By analyzing the influence curve of the optical signal angle deviation under different pressures, the present invention can construct a model to link the optical fiber deformation with the external pressure, establish a quantitative relationship between the pressure and the degree of communication quality degradation, and can quantitatively analyze the degree and characteristics of the influence of pressure on optical fiber communication, providing a scientific basis for optimizing the optical fiber communication system and the setting of the pressure threshold; by analyzing the pressure effect communication model, a pressure value corresponding to the acceptable lower limit of the communication quality can be found, which is set as the warning threshold, and a critical pressure value is determined. When the external pressure exceeds this value, the optical fiber communication quality will significantly decline, providing an important reference for subsequent pressure monitoring and early warning; by integrating a MEMS pressure sensor on the optical fiber, the current pressure value of the optical fiber can be obtained in real time, and the external pressure of the optical fiber can be monitored in real time, providing data for subsequent judgment on whether to trigger an early warning, and ensuring the safety and stability of the optical fiber communication system; by comparing the real-time pressure data with the pressure threshold obtained by the previous analysis, it can be judged whether the current optical fiber is in a safe working state, and the optical fiber can be found in time. Whether the bearing pressure reaches or exceeds the threshold provides a basis for the subsequent generation of early warning signals and fiber protection; when the real-time monitored pressure value is lower than the early warning threshold, it indicates that the fiber-optic communication is not significantly affected and the system can continue to work normally, ensuring that the system will not issue false alarms under normal circumstances, avoiding unnecessary waste of resources and system interruptions; when the real-time monitored pressure value exceeds the early warning threshold, it indicates that the quality of fiber-optic communication is affected, and the system needs to pass this information to the subsequent modules in the form of electrical signals, convert the information of excessive pressure into electrical signals, and provide a signal source for the subsequent triggering of early warning and protection mechanisms, so that timely countermeasures can be taken; by converting electrical signals into specific early warning signals, the reliability and response speed of the system can be improved, and the changes in the fiber-optic bearing pressure can be converted into early warning signals, providing timely and accurate input for fiber protection and master-slave switching; by pre-setting the master-slave fiber switching mechanism, the communication interruption caused by fiber damage can be minimized, and countermeasures can be taken when the pressure impact exceeds the threshold to ensure the continuous and stable operation of the fiber-optic communication system.

[0214] Preferably, the present invention further provides a communication master-slave optical fiber digital control switching system based on MEMS technology, which is used to execute the communication master-slave optical fiber digital control switching method based on MEMS technology as described above. The communication master-slave optical fiber digital control switching system based on MEMS technology includes:

[0215] The pressure simulation module is used to obtain preset pressure data, and perform pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; and perform electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data;

[0216] The pressure simulation deformation module is used to perform two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; perform cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; perform point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data;

[0217] The deformation offset optical signal analysis module is used to perform optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position; perform signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal;

[0218] The signal offset impact module is used to analyze the impact index of the offset angle optical signal to obtain the offset communication impact index; construct a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain the signal angle offset impact curve;

[0219] The main and standby optical fiber switching module is used to analyze the impact curve of signal angle deviation and pressure simulation data on communication pressure threshold, and obtain the impact communication pressure threshold; obtain the communication optical fiber bearing pressure by MEMS sensor, and obtain the communication optical fiber bearing pressure; perform threshold assessment on the impact communication pressure threshold based on pressure simulation data, and obtain the pressure threshold assessment result; perform main and standby optical fiber switching processing on the communication optical fiber and pressure electrical signal data based on the pressure threshold assessment result, and obtain the main and standby optical fiber switching result.

[0220] In summary, the present invention provides a communication master-standby optical fiber digital control switching system based on MEMS technology. The communication master-standby optical fiber digital control switching system based on MEMS technology consists of a pressure simulation module, a pressure simulation deformation module, a deformation offset optical signal analysis module, a signal offset influence module, and a master-standby optical fiber switching module. It can realize any one of the communication master-standby optical fiber digital control switching methods based on MEMS technology described in the present invention, and is used to combine the operations between computer programs running on each module to realize any one of the communication master-standby optical fiber digital control switching methods based on MEMS technology. The internal structures of the system cooperate with each other, which can greatly reduce duplication of work and manpower investment, and can quickly and effectively provide a more accurate and efficient communication master-standby optical fiber digital control switching process, thereby simplifying the operation process of a communication master-standby optical fiber digital control switching system based on MEMS technology.

[0221] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A communication master and standby optical fiber digital control switching method based on MEMS technology, characterized in that: The following steps are involved: Step S1: obtaining preset pressure data, and performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; Converting the pressure analog data into electric signals to obtain pressure electric signal data; Step S2: Performing two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; performing cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; Based on the pressure cross-sectional area change curve, point-wise deformation shape analysis is performed on the two-dimensional image of the optical fiber cross-section to obtain multi-point deformation shape data; Step S3: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position; Based on the point optical fiber deformation curvature, the signal angle deviation analysis is performed on the communication optical fiber and the two-dimensional image of the optical fiber cross section to obtain the deviation angle optical signal; Step S4: performing an impact index analysis on the offset angle optical signal to obtain an offset communication impact index; constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve; Step S5: analyzing the pressure threshold affecting communication on the signal angle deviation influence curve and the pressure simulation data to obtain the pressure threshold affecting communication; The MEMS sensor bearing pressure of the communication optical fiber is acquired to obtain the bearing pressure of the communication optical fiber; based on the pressure simulation data, a threshold value of the pressure threshold affecting the communication is evaluated to obtain a pressure threshold evaluation result; Based on the pressure threshold assessment result, the communication optical fiber and the pressure electrical signal data are processed for the main and backup optical fiber switching to obtain the main and backup optical fiber switching result.

2. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 1, characterized in that: Step S1 includes the following steps: Step S11: obtaining preset pressure data; Step S12: performing pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; Step S13: Analyze the electrical characteristic change of the MEMS sensor on the pressure simulation data to obtain the electrical characteristic change data of the sensor; Step S14: Perform pressure electrical signal analysis on the sensor electrical characteristic change data based on the pressure simulation data to obtain pressure electrical signal data.

3. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 1, characterized in that: Step S2 includes the following steps: Step S21: acquiring cross-sectional data of the communication optical fiber to obtain cross-sectional data of the communication optical fiber; Step S22: performing two-dimensional optical fiber cross-section mapping on the communication optical fiber cross-section data to obtain a two-dimensional optical fiber cross-section image; Step S23: analyzing the cross-sectional area change of the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; Step S24: performing multi-point pressure deformation simulation on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area variation curve to obtain multi-point pressure deformation degree data of the cross section; Step S25: performing point deformation shape analysis on the cross-section multi-point pressure deformation degree data to obtain multi-point deformation shape data.

4. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 3 is characterized in that: Step S23 includes the following steps: Step S231: setting a pressure load surface for the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain pressure load surface data; Step S232: performing different load surface deformation pressure analysis on the two-dimensional image of the optical fiber cross section based on the pressure load surface data to obtain cross-sectional deformation pressure data; Step S233: performing deformation area analysis on the two-dimensional image of the optical fiber cross section based on the pressure load surface data and the cross-sectional deformation pressure data to obtain pressure cross-sectional deformation area change data; Step S234: Plotting the pressure cross-sectional deformation area change data based on the pressure simulation data to obtain a pressure deformation cross-sectional area change curve.

5. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 1, characterized in that: Step S3 includes the following steps: Step S31: performing optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position; Step S32: inputting a stable frequency signal to the communication optical fiber to obtain an optical fiber stable signal; Step S33: performing a mapping signal angle analysis on the two-dimensional image of the optical fiber cross section based on the optical fiber stable signal to obtain the optical fiber cross section signal angle; Step S34: performing optical signal angle deviation analysis on the optical fiber cross-section signal angle based on the optical fiber deformation curvature at the point position to obtain optical signal angle deviation data; Step S35: performing angle deviation analysis on the optical fiber stable signal based on the optical signal angle deviation data and the optical fiber cross-section signal angle to obtain a deviation angle optical signal.

6. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 5, characterized in that: Step S31 includes the following steps: Step S311: performing point-to-plane mapping on the multi-point deformation shape data to obtain a point-to-plane deformation figure; Step S312: performing deformation and displacement analysis on the point-position deformation plane graph to obtain point-position deformation and displacement data; Step S313: performing deformation curvature analysis on the point deformation plane figure based on the point deformation displacement data to obtain image deformation curvature; Step S314: performing curvature radius analysis on the image deformation curvature to obtain the deformation curvature radius; Step S315: distinguishing the positive and negative curvatures of the deformation curvature radius to obtain positive and negative data of the deformation curvature; Step S316: performing deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the image deformation curvature and the positive and negative data of the deformation curvature to obtain the deformation curvature of the optical fiber at a point.

7. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 1, characterized in that: Step S4 includes the following steps: Step S41: performing optical signal loss analysis on the offset angle optical signal to obtain optical signal scattering loss data; Step S42: acquiring the transmission path of the offset angle optical signal to obtain the offset signal transmission path; Step S43: performing transmission delay analysis on the offset signal transmission path to obtain transmission delay data of the offset signal; Step S44: performing communication influence weight matching on the optical signal scattering loss data and the offset signal transmission delay data to obtain the communication influence weight; Step S45: performing an impact index analysis on the optical signal scattering loss data and the offset signal transmission delay data based on the communication impact weight to obtain an offset communication impact index; Step S46: constructing a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain a signal angle offset impact curve.

8. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 7, characterized in that: Step S41 includes the following steps: Step S411: positioning the optical fiber reflection point of the offset angle optical signal to obtain the offset optical fiber reflection point; Step S412: performing optical fiber node division on the offset optical fiber reflection point to obtain the offset optical fiber division node; Step S413: Plotting a signal scattering spectrum of the offset optical fiber division node to obtain a signal scattering spectrum; Step S414: performing scattered signal loss analysis on the signal scattering spectrum to obtain optical signal scattering loss data.

9. The method for digital control switching of communication master and standby optical fibers based on MEMS technology according to claim 1, characterized in that: Step S5 includes the following steps: Step S51: constructing a model for the signal angle deviation influence curve and the pressure simulation data to obtain a pressure influence communication model; Step S52: analyzing the pressure impact communication model to obtain the pressure impact communication threshold; Step S53: acquiring the bearing pressure of the communication optical fiber using a MEMS sensor to obtain the bearing pressure of the communication optical fiber; Step S54: performing a threshold assessment on the pressure threshold affecting communication based on the pressure simulation data to obtain a pressure threshold assessment result; Step S55: If the pressure threshold assessment result is that the communication optical fiber carrying pressure is less than the pressure threshold affecting communication, no processing is performed; Step S56: if the pressure threshold assessment result is that the communication optical fiber carrying pressure is greater than or equal to the pressure threshold affecting communication, then pressure threshold electric signal sharing is performed on the pressure electric signal data based on the pressure threshold affecting communication to obtain a pressure threshold electric signal; Step S57: converting the communication optical fiber into a warning signal based on the pressure threshold electrical signal to obtain a communication-affecting warning signal; Step S58: Performing a primary-backup optical fiber switching process on the communication optical fiber based on the communication-affecting warning signal to obtain a primary-backup optical fiber switching result.

10. A communication master-slave optical fiber digital control switching system based on MEMS technology, characterized in that: Used to execute the communication master and standby optical fiber digital control switching method based on MEMS technology as claimed in claim 1, the communication master and standby optical fiber digital control switching system based on MEMS technology comprises: The pressure simulation module is used to obtain preset pressure data, and perform pressure simulation on the communication optical fiber based on the preset pressure data to obtain pressure simulation data; and perform electrical signal conversion on the pressure simulation data to obtain pressure electrical signal data; The pressure simulation deformation module is used to perform two-dimensional composition of the optical fiber cross section of the communication optical fiber to obtain a two-dimensional image of the optical fiber cross section; perform cross-sectional area change analysis on the two-dimensional image of the optical fiber cross section based on the pressure simulation data to obtain a pressure cross-sectional area change curve; perform point deformation shape analysis on the two-dimensional image of the optical fiber cross section based on the pressure cross-sectional area change curve to obtain multi-point deformation shape data; The deformation offset optical signal analysis module is used to perform optical fiber deformation curvature analysis on the two-dimensional image of the optical fiber cross section based on the multi-point deformation shape data to obtain the optical fiber deformation curvature at the point position; perform signal angle offset analysis on the communication optical fiber and the two-dimensional image of the optical fiber cross section based on the point optical fiber deformation curvature to obtain the offset angle optical signal; The signal offset impact module is used to analyze the impact index of the offset angle optical signal to obtain the offset communication impact index; construct a signal angle offset impact curve for the offset communication impact index and the offset angle optical signal to obtain the signal angle offset impact curve; The main and standby optical fiber switching module is used to analyze the impact curve of signal angle deviation and pressure simulation data on communication pressure threshold, and obtain the impact communication pressure threshold; obtain the communication optical fiber bearing pressure by MEMS sensor, and obtain the communication optical fiber bearing pressure; perform threshold assessment on the impact communication pressure threshold based on pressure simulation data, and obtain the pressure threshold assessment result; perform main and standby optical fiber switching processing on the communication optical fiber and pressure electrical signal data based on the pressure threshold assessment result, and obtain the main and standby optical fiber switching result.

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