A method and device for monitoring an optical distributed acquisition and control ring network

Abstract

The present invention relates to the field of digital information transmission, and particularly to an optical distributed acquisition and control ring network monitoring method and device. It includes: calculating the transmission load factor between different hosts using a ring network communication load calculation algorithm; calculating the dual-redundancy backup switching responsiveness using a dual-redundancy backup switching responsiveness dynamic evaluation algorithm based on the transmission load factor between different hosts; calculating the communication stability of the optical distributed control ring network using a communication stability dynamic evaluation algorithm based on the transmission load factor between different hosts and the dual-redundancy backup switching responsiveness; calculating the signal adaptability between the slave and the detection device using a signal adaptation algorithm based on the communication stability of the optical distributed control ring network. It solves the problems of being unable to dynamically respond to traffic changes, the backup switching speed being unable to adapt to network load changes in real time, differences in the load adaptation capabilities of slaves, insufficient matching between the communication frequency of slaves and the sampling frequency of detection devices, and external interference not being dynamically incorporated into the adaptability evaluation.

Description

Technical Field

[0001] The present invention relates to the field of digital information transmission, and particularly to an optical distributed acquisition and control ring network monitoring method and device. Background Art

[0002] With the continuous development of information technology and industrial control technology, the industrial control field has put forward higher requirements for efficient, safe, and intelligent acquisition and control means. In specific environments such as highway tunnels and urban utility tunnels, due to the wide distribution of equipment, traditional monitoring and control methods can no longer fully meet the existing needs. The optical distributed acquisition and control ring network monitoring method has emerged, providing a solution for realizing intelligent monitoring with high reliability, high performance, and easy maintenance.

[0003] The optical distributed acquisition and control ring network uses optical fiber as the data transmission medium. Through the ring network topology design and distributed control technology, it effectively solves the bottleneck of traditional acquisition and control methods. As the main communication medium, optical fiber has superior properties such as anti-electromagnetic interference, anti-impact, and moisture resistance. The addition or deletion of distributed control nodes has little impact on network operation, improving the flexibility of system deployment. Through domesticated chips and edge computing technology, data processing and decision-making operations can be completed locally, reducing the dependence on the central server. Summary of the Invention

[0004] The present invention provides an optical distributed acquisition and control ring network monitoring method and device to solve the problems that communication traffic and host load change over time, easily leading to link congestion and resource waste; relying on a fixed bandwidth allocation strategy, unable to dynamically respond to traffic changes, easily resulting in the situation that when network load surges, un-congested paths cannot quickly respond to the shunt demand, the priority of congested paths is not reduced, leading to link overload and even communication interruption, and the bandwidth allocation strategy lacks the guidance of historical load data, resulting in uneven resource allocation; the backup switching speed cannot adapt to network load changes in real time, there are differences in the load adaptation capabilities of slave machines, and the communication frequency of slave machines does not match the sampling frequency of detection devices enough, resulting in signal loss or low sampling efficiency; external interference is not dynamically incorporated into the adaptability evaluation, affecting communication performance in complex environments.

[0005] The optical distributed acquisition and control ring network monitoring method and device of the present invention specifically include the following technical solutions:

[0006] An optical distributed acquisition and control ring network monitoring method includes the following steps:

[0007] S1: Collect the hardware performance indicators of each host and the link attributes between hosts in real time, and obtain the real-time operation parameters of the optical distributed core ring network, and calculate the transmission load factors between different hosts using the ring network communication load calculation algorithm;

[0008] S2: Calculate the dual-redundancy backup switching responsiveness based on the transmission load factors between different hosts using the dual-redundancy backup switching responsiveness dynamic evaluation algorithm;

[0009] S3: Calculate the optical distributed control ring network communication stability based on the transmission load factors between different hosts and the dual-redundancy backup switching responsiveness using the communication stability dynamic evaluation algorithm;

[0010] S4: Calculate the signal adaptability between the slave device and the detection device based on the optical distributed control ring network communication stability using the signal adaptation algorithm.

[0011] Preferably, S1 specifically includes:

[0012] The ring network communication load calculation algorithm dynamically allocates communication resources by analyzing the processing capabilities, cache capacities, link distances, communication load adjustment factors, link congestion levels, and historical data distributions between hosts, thereby optimizing the performance of the optical distributed core ring network.

[0013] Preferably, S1 specifically includes:

[0014] The ring network communication load calculation algorithm calculates the bearing capacity of the host communication load based on the processing capabilities and cache capacities of each host; analyzes the real-time congestion status of the optical distributed core ring network in combination with the physical distances of the links between hosts; performs resource allocation through the communication load adjustment factor; dynamically monitors the traffic congestion situation between hosts, introduces the link congestion level as a penalty factor into the calculation, and dynamically adjusts the current bandwidth allocation strategy of the host; the bandwidth allocation strategy dynamically predicts future bandwidth requirements based on the historical load conditions of the host and allocates available resources according to the current cache capacity.

[0015] Preferably, S1 specifically includes:

[0016] The calculation formula for the transmission load factor is:

[0017] ,

[0018] where, represents the transmission load factor from host to host at time ; represents the processing capability of host ; represents the cache capacity of host ; represents the physical link length between host and host ; represents host Communication load adjustment coefficient; Indicates the moment Host To the host Link congestion degree; Indicates the dynamic bandwidth gain; Indicates the adaptive bandwidth allocation factor; Indicates the moment Host Total load pressure of; Indicates the moment Host To the host Transmission load factor; Indicates the number of hosts.

[0019] Preferably, the S2 specifically includes:

[0020] The dual-redundancy backup switching responsiveness dynamic evaluation algorithm evaluates the redundancy switching efficiency in real time by introducing a time window mechanism, load dynamic weights, and the state judgment of the dual-redundancy backup mechanism.

[0021] Preferably, the S2 specifically includes:

[0022] The time window mechanism adopts a sliding time window method, continuously collects network performance data within a predefined time interval, including the transmission load factor and the state of the dual-redundancy backup mechanism, and smoothly reflects the switching response efficiency in the past period of time; the state of the dual-redundancy backup mechanism is obtained by logically judging the operating states of two hosts. When at least one host is operating normally, it is in a normal operating state. When both hosts fail, communication is interrupted; the impact of network load on redundancy switching is dynamically reflected through load dynamic weights. The current transmission load factor is compared with a preset transmission load factor threshold. When the current transmission load factor exceeds the preset transmission load factor threshold, it indicates that a quick switch needs to be completed. Otherwise, no processing is required.

[0023] Preferably, the S3 specifically includes:

[0024] Based on the transmission load factor and dual-redundancy backup switching responsiveness between different hosts, use the communication stability dynamic evaluation algorithm to combine slave availability, slave ring link length, slave load adjustment coefficient, and link congestion prediction factor to calculate the communication stability of the optical distributed control ring network; the specific formula is:

[0025] ,

[0026] Among them, Indicates the communication stability of the optical distributed control ring network; Indicates the moment Dual-redundancy backup switching responsiveness of; Indicates the availability of the slave device; Is the sum of the availabilities of all slave devices; Indicates the total length of the slave ring link; Indicates the slave device 's load adjustment factor; Indicates the link congestion prediction factor; Indicates the weight coefficient of the transmission load change rate; Indicates the transmission load change rate; Indicates the weight coefficient of the load change acceleration; Indicates the transmission load change acceleration.

[0027] Preferably, the S4 specifically includes:

[0028] The signal adaptation algorithm takes the communication stability of the optical distributed control ring network as the basic condition for signal adaptation and introduces the link length as an inhibition factor; the implementation formula of the signal adaptation algorithm is:

[0029] ,

[0030] Among them, Indicates the slave device and the detection device at time 's signal adaptation degree; Indicates the communication stability of the slave ring; Indicates the slave device 's communication frequency squared; Indicates the detection device 's sampling frequency squared; Indicates the slave device to the detection device 's link length 's natural logarithm; Indicates the dynamic adaptation interference factor; Indicates the weighted sum of interference source signals; Indicates the th interference source at time 's signal strength; Indicates the th interference source's equivalent distance from the slave device and the detection device; Indicates the reference distance of interference attenuation; Indicates the distance attenuation weight.

[0031] An optical distributed acquisition and control ring network monitoring device includes a main ring and a slave ring; the main ring is an optical distributed core ring network, including host devices; the host devices are integrally formed into a ring for communication connection by means of a main optical fiber module; the slave ring is an optical distributed control ring network, including slave devices for distributed control and detection; the slave devices are integrally formed into a ring for communication connection by means of a slave optical fiber module, and the slave devices include at least one detection device.

[0032] Preferably, the operation of the optical distributed acquisition and control ring network monitoring device depends on the collaborative work of the following modules: a data acquisition module, a transmission load factor calculation module, a redundant switching response module, a communication stability evaluation module, and a signal adaptation module;

[0033] Data acquisition module: Real-time acquisition of optical distributed acquisition and control ring network data, and real-time monitoring of the interference source signal strength. Output the optical distributed acquisition and control ring network data to the transmission load factor calculation module, the redundant switching response module, the communication stability evaluation module, and the signal adaptation module, and output the interference source signal strength to the signal adaptation module;

[0034] Transmission load factor calculation module: Based on the optical distributed acquisition and control ring network data, use the ring network communication load calculation algorithm to calculate the transmission load factor between different hosts, and output the transmission load factor between different hosts to the redundant switching response module and the communication stability evaluation module;

[0035] Redundant switching response module: Based on the optical distributed acquisition and control ring network data and the transmission load factor between different hosts, use the dual-redundancy backup switching response degree dynamic evaluation algorithm to calculate the dual-redundancy backup switching response degree, and output the dual-redundancy backup switching response degree to the communication stability evaluation module;

[0036] Communication stability evaluation module: Based on the optical distributed acquisition and control ring network data, the transmission load factor between different hosts, and the dual-redundancy backup switching response degree, use the communication stability dynamic evaluation algorithm to calculate the communication stability of the optical distributed control ring network, and output the communication stability of the optical distributed control ring network to the signal adaptation module;

[0037] Signal adaptation module: Based on the optical distributed acquisition and control ring network data and the communication stability of the optical distributed control ring network, use the signal adaptation algorithm to calculate the signal adaptation degree between the slave device and the detection device.

[0038] The beneficial effects of the technical solution of the present invention are:

[0039] 1. By collecting the host hardware performance metrics, link attributes, and operating parameters of the optical distributed core ring network in real time, comprehensively evaluating the transmission load factor between hosts, dynamically optimizing the communication load distribution of the optical distributed core ring network, significantly reducing the probability of link congestion, improving the utilization efficiency of communication resources, reducing the overall communication latency, enhancing the traffic adaptation ability of the ring network, and having stability in high-traffic burst scenarios.

[0040] 2. By smoothing short-term fluctuations through a sliding time window, combining the transmission load factor with the redundant backup status, evaluating the dual-redundant backup switching responsiveness, introducing an exponential decay function to enable a rapid reduction in response time when the load exceeds the threshold, and dynamically adjusting the redundant switching strategy, improving the efficiency of dual-redundant backup switching, ensuring communication continuity in case of single-point or multi-point failures, and reducing the risk of communication interruption caused by network failure switching latency.

[0041] 3. By comprehensively utilizing the slave availability, length of the slave ring link, load adjustment coefficient, and link congestion prediction factor, dynamically calculating the communication stability of the optical distributed core ring network in real time, improving the adaptability to complex traffic scenarios, significantly reducing the sudden bottleneck problems during communication, achieving load balancing and dynamic adjustment, thereby improving the overall stability of the communication process, and ensuring smooth operation by predicting potential congestion areas.

[0042] 4. Based on the communication stability of the optical distributed core ring network, combining the characteristics of the communication frequency of the slave and the sampling frequency of the detection device, dynamically optimizing the signal adaptation between the slave and the detection device, improving the reliability and matching degree of signal transmission between the slave and the detection device, reducing the attenuation and error caused by distance or interference during signal transmission, and enhancing the signal quality. Description of the Drawings

[0043] Figure 1 Structural diagram of an optical distributed acquisition and control ring network monitoring device according to the present invention;

[0044] Figure 2 Operating module diagram of an optical distributed acquisition and control ring network monitoring device according to the present invention;

[0045] Figure 3 Flowchart of an optical distributed acquisition and control ring network monitoring method according to the present invention. Detailed Embodiments

[0046] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0048] The following specifically describes the specific solutions of an optical distributed acquisition and control ring network monitoring method and device provided by the present invention in conjunction with the accompanying drawings.

[0049] Refer to the attached Figure 1 , which shows the structural diagram of an optical distributed acquisition and control ring network monitoring device provided by an embodiment of the present invention. The device includes a main ring and a slave ring. The main ring is an optical distributed core ring network, including a host device, and the host device is integrally formed into a ring for communication connection by a main optical fiber module; the slave ring is an optical distributed control ring network, including slave devices for distributed control and detection, such as lane indicators, emergency telephones, lighting systems, ventilation systems, carbon monoxide visibility detectors, etc. The slave devices are integrally formed into a ring for communication connection by a slave optical fiber module, and the slave devices include at least one detection device.

[0050] Meanwhile, the operation of the optical distributed acquisition and control ring network monitoring device depends on the coordinated work of a series of modules. As shown in the attached Figure 2 , it includes a data acquisition module, a transmission load factor calculation module, a redundancy switching response module, a communication stability evaluation module, and a signal adaptation module;

[0051] Data acquisition module: Real-time acquisition of optical distributed acquisition and control ring network data, such as the hardware performance indicators of the host, link attributes, real-time operation parameters of the optical distributed core ring network; and real-time monitoring of the interference source signal strength, outputting the acquired optical distributed acquisition and control ring network data to the transmission load factor calculation module, redundancy switching response module, communication stability evaluation module, and signal adaptation module, and outputting the interference source signal strength to the signal adaptation module;

[0052] Transmission load factor calculation module: Based on the optical distributed acquisition and control ring network data of the data acquisition module, calculate the transmission load factor between different hosts using the ring network communication load calculation algorithm, and output the transmission load factor between different hosts to the redundancy switching response module and the communication stability evaluation module;

[0053] Redundant Switching Response Module: Based on the data of the optical distributed acquisition and control ring network from the data acquisition module and the transmission load factors between different hosts from the transmission load factor calculation module, the dual-redundant backup switching response degree is calculated using the dual-redundant backup switching response degree dynamic evaluation algorithm, and the dual-redundant backup switching response degree is output to the communication stability evaluation module;

[0054] Communication Stability Evaluation Module: Based on the data of the optical distributed acquisition and control ring network from the data acquisition module, the transmission load factors between different hosts from the transmission load factor calculation module, and the dual-redundant backup switching response degree from the redundant switching response module, the communication stability of the optical distributed control ring network is calculated using the communication stability dynamic evaluation algorithm, and the communication stability of the optical distributed control ring network is output to the signal adaptation module;

[0055] Signal Adaptation Module: Based on the data of the optical distributed acquisition and control ring network from the data acquisition module and the communication stability of the optical distributed control ring network from the communication stability evaluation module, the signal adaptation degree between the slave machine and the detection device is calculated using the signal adaptation algorithm.

[0056] Refer to the appendix Figure 3 , which shows a flowchart of an optical distributed acquisition and control ring network monitoring method provided by an embodiment of the present invention. The method includes the following steps:

[0057] S1. Real-time collect the hardware performance indicators of each host and the link attributes between the hosts, and obtain the real-time operation parameters of the optical distributed core ring network. Calculate the transmission load factors between different hosts using the ring network communication load calculation algorithm;

[0058] Real-time collect the hardware performance indicators of each host (such as processing power and cache capacity) and the link attributes between the hosts (such as physical distance). At the same time, obtain the real-time operation parameters of the optical distributed core ring network, such as congestion status and load distribution;

[0059] Calculate the transmission load factors between different hosts using the ring network communication load calculation algorithm to measure the real-time load status of the links between the hosts;

[0060] The ring network communication load calculation algorithm dynamically allocates communication resources by analyzing the processing power, cache capacity, link distance, communication load adjustment coefficient, link congestion degree, and historical data distribution of the hosts, so as to optimize the performance of the optical distributed core ring network, reduce latency, improve communication efficiency, has high flexibility, can adapt to the changes in the traffic of the optical distributed core ring network in real time, and ensure the stability and fault tolerance of the optical distributed core ring network;

[0061] Specifically, according to the processing capacity and cache capacity of each host, the bearing capacity of the host communication load is calculated; combined with the physical distance of the links between the hosts to consider the real-time congestion state of the optical distributed core ring network; the communication load adjustment coefficient is a parameter used to describe the dynamic adjustment ability of the host to communication traffic. Different hosts may exhibit different communication adaptation abilities due to hardware performance, load history, and current operating status. The introduction of the communication load adjustment coefficient enables the ring network communication load calculation algorithm to flexibly allocate resources. Especially in the case of high traffic or burst loads, it can help the ring network communication load calculation algorithm to preferentially select suitable hosts for transmission and reduce congestion; by dynamically monitoring the traffic congestion situation between the hosts, the link congestion degree is introduced as a penalty factor into the calculation to reduce the priority of the congested path. By analyzing the historical data distribution of the hosts, the current bandwidth allocation strategy of the hosts is dynamically adjusted. The bandwidth allocation strategy is based on the historical load situation of the hosts, dynamically predicts future bandwidth requirements, and allocates available resources according to the current cache capacity;

[0062] The calculation formula for the transmission load factor is:

[0063] ,

[0064] wherein, represents the time host to host transmission load factor; represents host processing capacity, that is, the maximum amount of data that the host can process per unit time, with the unit of data volume / time (such as Mbps or Gbps), used to measure the computing and data processing ability of the host, and is determined according to the host device parameters; represents host cache capacity, with the unit of data volume (such as MB or GB), and is determined according to the host device parameters; represents host to host physical link length between, with the unit of meter; represents host communication load adjustment coefficient, dimensionless, used to adjust high-load hosts to avoid communication congestion caused by link overload, and is obtained by calculating according to the real-time traffic monitoring data of the host and the link utilization rate. The calculation method is a well-known technical means for those skilled in the art and will not be elaborated here; represents using the logarithmic function to smoothly adjust the influence of the communication load adjustment coefficient; represents the time host to host The degree of link congestion, with a value range of [0, 1), is calculated based on the real-time packet loss rate or link utilization rate. The calculation method is a well-known technical means for those skilled in the art and will not be elaborated here; represents the dynamic bandwidth gain, which non-linearly enhances the load-bearing capacity of high-bandwidth hosts using an exponential function while restricting the load of low-bandwidth hosts; represents the adaptive bandwidth allocation factor, which is used to dynamically control the communication load and improve the host bandwidth utilization rate; represents the time host total load pressure; represents the time host to host transmission load factor; represents the number of hosts.

[0065] S2. Based on the transmission load factors between different hosts, use the dual-redundancy backup switching responsiveness dynamic evaluation algorithm to calculate the dual-redundancy backup switching responsiveness;

[0066] Based on the transmission load factors between different hosts, use the dual-redundancy backup switching responsiveness dynamic evaluation algorithm to calculate the dual-redundancy backup switching responsiveness; The dual-redundancy backup switching responsiveness dynamic evaluation algorithm realizes the real-time evaluation of the redundancy switching efficiency by introducing a time window mechanism, load dynamic weights, and the state judgment of the dual-redundancy backup mechanism;

[0067] The time window mechanism uses a sliding time window to smooth short-term fluctuating data. By predefined time intervals, continuously collect network performance data within the time intervals, including the transmission load factor and the state of the dual-redundancy backup mechanism; The sliding time window ensures that the calculation results can smoothly reflect the switching response efficiency in the past period of time and will not lose the overall regularity due to a sudden situation at a certain moment;

[0068] The state of the dual-redundancy backup mechanism is obtained by logically judging the running states of two hosts. When at least one host is running normally, it is in the normal running state. When both hosts fail, the communication is interrupted;

[0069] The load dynamic weights are used to dynamically reflect the impact of network load on redundancy switching. Introduce an exponential decay function, compare the current transmission load factor with the preset transmission load factor threshold. When the current transmission load factor exceeds the preset transmission load factor threshold, the value of the exponential decay term will decrease rapidly, indicating that the switching needs to be completed quickly. Otherwise, no processing is required;

[0070] The calculation formula for the dual-redundancy backup switching responsiveness is:

[0071] ,

[0072] Among them, represents the dual-redundancy backup switching responsiveness at time ; represents an integration operation, which is a cumulative calculation within the time window from time to time , and is used to calculate the average response time within the past time window to eliminate random fluctuations within a short period; represents a time interval, which can be specifically set according to specific implementation scenarios and is not limited here; represents a time variable, that is, at any moment within the time window, and is used for integration operations; represents the state of the host at time ; from the host to the host ; represents a preset transmission load factor threshold, which can be specifically set according to specific implementation scenarios and is not limited here; represents an exponential decay term. When the transmission load factor exceeds the preset transmission load factor threshold, the value of the exponential decay term will decrease rapidly, indicating that the switching needs to be completed quickly, providing a dynamic adjustment mechanism that is sensitive to load changes;

[0073] ,

[0074] Among them, represents the host status flag at time . If at least one host is operating normally, it is in a normal operating state with a status of 1. If both hosts fail, the communication is interrupted and the status is 0; represents that the host at time is in a normal operating state; ; represents that the host at time has failed; ; represents that the host at time is in a normal operating state; ; represents that the host at time has failed; ; represents a logical OR operation. As long as any one of the hosts or the host is operating normally, it is in a normal operating state; represents a logical AND operation. When and only when both hosts fail, it is in a communication interruption state.

[0075] S3. Based on the transmission load factor and dual-redundancy backup switching responsiveness between different hosts, use the communication stability dynamic evaluation algorithm to calculate the communication stability of the optical distributed control ring network;

[0076] Based on the transmission load factor and dual-redundancy backup switching responsiveness between different hosts, use the communication stability dynamic evaluation algorithm in combination with the slave availability, the length of the slave ring link, the slave load adjustment coefficient, and the link congestion prediction factor to calculate the communication stability of the optical distributed control ring network;

[0077] By checking the operating status of all slaves one by one, summarize the availability of each slave into an overall indicator. The availability of the slave ranges from 0 to 1, where 0 indicates that the slave is unavailable and 1 indicates that the slave is fully available;

[0078] Furthermore, considering the influence of the slave load adjustment coefficient, reflect the ability of the slave ring to adapt to different loads, and use logarithmic operations to scale the influence to avoid interference from extreme values on the evaluation results;

[0079] The link congestion prediction factor calculates the rate and acceleration of load change through the first derivative and the second derivative, and uses the weight coefficient to adjust the contribution ratio of the rate and acceleration, so as to predict the possible congestion trend of the slave link;

[0080] The calculation formula for the communication stability of the slave ring:

[0081] ,

[0082] where, represents the communication stability of the optical distributed control ring network; represents the moment of the dual-redundancy backup switching responsiveness; represents the availability of the slave; is the sum of the availabilities of all slaves, representing the overall normal operation ability of the slave devices in the slave ring; represents the total length of the slave ring link; represents the slave 's load adjustment coefficient; represents the logarithm of the load adjustment coefficient of the slave , which is used to scale the influence of the load adjustment coefficient on stability and avoid instability caused by directly using linear changes; represents the link congestion prediction factor, predicting future communication bottlenecks on the link; represents the weight coefficient of the transmission load change rate, which is used to adjust the contribution of the first derivative in congestion prediction and can be specifically set according to specific implementation scenarios and is not limited here; represents the transmission load change rate, which is used to reflect the change trend of the transmission load factor over time; A weight coefficient representing the acceleration of the load change, which is used to adjust the contribution of the second derivative in congestion prediction and can be specifically set according to specific implementation scenarios and is not limited herein; Represents the acceleration of the transmission load change, which is used to reflect the increasing or decreasing trend of the transmission load change rate to predict potential congestion.

[0083] S4. Based on the communication stability of the optical distributed control ring network, use a signal adaptation algorithm to calculate the signal adaptation degree between the slave device and the detection device;

[0084] Based on the communication stability of the optical distributed control ring network, use a signal adaptation algorithm to calculate the signal adaptation degree between the slave device and the detection device; the signal adaptation algorithm takes the communication stability of the optical distributed control ring network as the basic condition for signal adaptation; takes the frequency characteristics of the slave device and the detection device as the key factors for calculating the signal adaptation degree. The communication frequency of the slave device reflects the rate of the transmitted signal, while the sampling frequency of the detection device determines the ability to receive signals. The frequency matching degree between the slave device and the detection device has an important impact on the signal adaptation performance;

[0085] During the process of signal adaptation, the link length is an important influencing factor. The longer the link between the slave device and the detection device, the greater the impact of signal attenuation and delay during transmission. Introduce the link length as an inhibition factor for adaptation calculation to measure the restriction of the physical topology on signal transmission. By performing a logarithmic transformation on the length of the link, the negative impact of long-distance communication on the adaptation performance can be effectively weakened;

[0086] In a complex communication environment, the impact of external interference signals on the detection device cannot be ignored. By analyzing the signal strength of the interference source and the relative distance between the interference source and the system device, evaluate the dynamic impact of interference on the adaptation performance; by adjusting the weight of the interference signal, it can adapt to different intensities and distributions of the interference environment in real time. The closer the interference source is to the detection device, the more significant the impact, while the farther the distance, the impact will decay exponentially;

[0087] The calculation formula for the signal adaptation degree is:

[0088] ,

[0089] where, Represents the slave device and the detection device at time of the signal adaptation degree, which is used to measure the signal matching degree between the slave device and the detection device during communication and is used to reflect the reliability and efficiency of transmission; Represents the communication stability of the slave ring; Represents the slave device The square of the communication frequency. The squaring operation reflects the importance of the communication frequency for signal adaptation and enhances the influence weight of high-frequency slave devices in adaptation; Represents the detection device The square of the sampling frequency. The squaring operation enhances the adaptation weight of high-frequency detection devices; Represents the slave To the detection device The link length The natural logarithm, used to adjust the influence of the link length on the adaptation degree, and the logarithmic value is used to reduce the negative effect of long-distance links on the adaptation performance; Represents the dynamic adaptation interference factor; Represents the Weighted sum of interference source signals; Represents the th interference source at time The signal strength. The signal strength of the interference source is obtained through real-time monitoring; Represents the th interference source and the equivalent distance between the slave and the detection device; Represents the reference distance for interference attenuation, used to normalize the attenuation weight of the distance, which can be specifically set according to the specific implementation scenario and is not limited here; Represents the distance attenuation weight, used to reflect the non-linear characteristics of the interference signal attenuation with distance.

[0090] Through the comprehensive analysis and dynamic adaptation of key signal transmission parameters, the signal adaptation algorithm provides strong technical support for the efficient operation of the optical distributed acquisition and control ring network.

[0091] In summary, a monitoring method and device for an optical distributed acquisition and control ring network are completed.

[0092] The order of the invention embodiments is only for description and does not represent the superiority or inferiority of the embodiments. The processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0093] Each embodiment in this specification is described in a progressive manner. For the same or similar parts between the embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for monitoring an optical distributed data acquisition and control ring network, characterized in that: The following steps are involved: S1: Collect the hardware performance indicators of each host and the link properties between hosts in real time and obtain the real-time operating parameters of the optical distributed core ring network, and use the ring network communication load calculation algorithm to calculate the transmission load factor between hosts. : ， Indicates the host processing capabilities; Indicates the host Cache capacity; Indicates the host To the host The length of the physical link between Indicates the host Communication load adjustment factor; Indicates time Host To the host The link congestion level; Indicates time Host To the host The transmission load factor; Indicates the number of hosts; S2: Calculate the dual-redundancy backup switching responsiveness using a dual-redundancy backup switching responsiveness dynamic evaluation algorithm based on the transmission load factor between hosts : ， Indicates a time interval; represents the time variable; Indicates the preset transmission load factor threshold; Indicates the status of the dual redundant backup mechanism; S3: Calculate the communication stability of the optical distributed control ring network using a dynamic evaluation algorithm for communication stability based on the transmission load factor between hosts and the dual redundant backup switching responsiveness : ， Indicates the availability of the slave; Indicates the total length of the slave ring link; Indicates slave Load adjustment factor; The weight coefficient representing the rate of change of transmission load; Indicates the weight coefficient of load change acceleration; S4: Based on the optical distributed control ring network communication stability, the signal adaptation algorithm is used to calculate the signal adaptation degree between the slave and the detection device. : ， Indicates slave The square of the communication frequency; Indicates testing equipment The square of the sampling frequency; Indicates slave To testing equipment The link length; Indicates the number of interference source signals; Indicates The interference source is at time Signal strength; Indicates The equivalent distance between each interference source and the slave and detection equipment; Indicates the reference distance for interference attenuation.

2. The optical distributed acquisition and control ring network monitoring method according to claim 1 is characterized in that: The S1 specifically includes: The ring network communication load calculation algorithm dynamically allocates communication resources by analyzing the processing power, cache capacity, link distance, communication load adjustment coefficient, link congestion level and historical data distribution of the host, thereby optimizing the performance of the optical distributed core ring network.

3. The optical distributed data acquisition and control ring network monitoring method according to claim 2 is characterized in that: The S1 specifically includes: The ring network communication load calculation algorithm calculates the host communication load bearing capacity according to the processing power and cache capacity of each host; analyzes the real-time congestion status of the optical distributed core ring network in combination with the physical distance of the link between the hosts; allocates resources through the communication load adjustment coefficient; introduces the link congestion degree as a penalty factor into the calculation by dynamically monitoring the traffic congestion between the hosts, and dynamically adjusts the current bandwidth allocation strategy of the host; the bandwidth allocation strategy is based on the historical load of the host, dynamically predicts future bandwidth requirements, and allocates available resources according to the current cache capacity.

4. The optical distributed acquisition and control ring network monitoring method according to claim 1 is characterized in that: The S2 specifically includes: The dual redundant backup switching responsiveness dynamic evaluation algorithm evaluates the redundant switching efficiency in real time by introducing the time window mechanism, load dynamic weight and dual redundant backup mechanism status judgment.

5. The optical distributed data acquisition and control ring network monitoring method according to claim 4 is characterized in that: The S2 specifically includes: The time window mechanism adopts a sliding time window method, which continuously collects network performance data within a predefined time interval, including the transmission load factor and the status of the dual redundant backup mechanism, to smoothly reflect the switching response efficiency over the past period of time; the status of the dual redundant backup mechanism is obtained by logically judging the operating status of the two hosts. When at least one host is operating normally, it is in a normal operating state. When both hosts fail, the communication is interrupted; the impact of the network load on redundant switching is dynamically reflected through the load dynamic weight, and the current transmission load factor is compared with the preset transmission load factor threshold. When the current transmission load factor exceeds the preset transmission load factor threshold, it means that the switching needs to be completed quickly. Otherwise, no processing is required.

6. The optical distributed data acquisition and control ring network monitoring method according to claim 1 is characterized in that: The S3 specifically includes: Based on the transmission load factor between different hosts and the dual redundant backup switching responsiveness, the communication stability of the optical distributed control ring network is calculated using a dynamic evaluation algorithm for communication stability combined with slave availability, slave ring link length, slave load adjustment coefficient and link congestion prediction factor.

7. The optical distributed data acquisition and control ring network monitoring method according to claim 1 is characterized in that: The S4 specifically includes: The signal adaptation algorithm takes the communication stability of the optical distributed control ring network as the basic condition for signal adaptation and introduces the link length as an inhibition factor.

8. An optical distributed acquisition and control ring network monitoring device, applied to the optical distributed acquisition and control ring network monitoring method as claimed in claim 1, characterized in that: It includes a main ring and a slave ring; the main ring is an optical distributed core ring network, including a host device; the host device relies on the optical fiber module main line integrated ring communication connection; the slave ring is an optical distributed control ring network, including slave devices for distributed control and detection; the slave devices rely on the optical fiber module slave line integrated ring communication connection, and the slave devices include at least one detection device.

9. The optical distributed data acquisition and control ring network monitoring device according to claim 8, characterized in that: The operation of the optical distributed data acquisition and control ring network monitoring device depends on the collaborative work of the following modules: data acquisition module, transmission load factor calculation module, redundant switching response module, communication stability evaluation module, and signal adaptation module; Data acquisition module: acquires the optical distributed acquisition and control ring network data in real time, monitors the signal strength of the interference source in real time, outputs the optical distributed acquisition and control ring network data to the transmission load factor calculation module, redundant switching response module, communication stability evaluation module and signal adaptation module, and outputs the interference source signal strength to the signal adaptation module; Transmission load factor calculation module: Based on the optical distributed acquisition and control ring network data, the transmission load factor between different hosts is calculated using the ring network communication load calculation algorithm, and the transmission load factor between different hosts is output to the redundant switching response module and the communication stability evaluation module; Redundant switching response module: Based on the optical distributed acquisition and control ring network data and the transmission load factor between different hosts, the dual redundant backup switching responsiveness is calculated using the dual redundant backup switching responsiveness dynamic evaluation algorithm, and the dual redundant backup switching responsiveness is output to the communication stability evaluation module; Communication stability evaluation module: Based on the optical distributed acquisition and control ring network data, the transmission load factor between different hosts and the dual redundant backup switching responsiveness, the communication stability of the optical distributed control ring network is calculated using the communication stability dynamic evaluation algorithm, and the communication stability of the optical distributed control ring network is output to the signal adaptation module; Signal adaptation module: Based on the optical distributed acquisition and control ring network data and the optical distributed control ring network communication stability, the signal adaptation algorithm is used to calculate the signal adaptation degree between the slave and the detection equipment.

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