Optical distributed acquisition and control looped network monitoring method and device

Abstract

The invention relates to the field of digital information transmission, in particular to an optical distributed acquisition and control looped network monitoring method and device. Comprising the following steps: calculating transmission load factors among different hosts by using a ring network communication load calculation algorithm; based on transmission load factors among different hosts, calculating dual-redundancy backup switching responsivity by using a dual-redundancy backup switching responsivity dynamic evaluation algorithm; calculating the communication stability of the optical distributed control ring network by using a communication stability dynamic evaluation algorithm based on transmission load factors and dual-redundancy backup switching responsivity among different hosts; and based on the communication stability of the optical distributed control ring network, the signal adaptation degree between the slave and the detection equipment is calculated by using a signal adaptation algorithm. The problems that the flow change cannot be dynamically responded, the backup switching speed cannot adapt to the network load change in real time, the load adaptive capacities of the slaves are different, the communication frequency of the slaves and the sampling frequency of the detection equipment are insufficient in matching, and external interference cannot be dynamically included in adaptation degree evaluation are solved.

Description

Technical Field

[0001] The present invention relates to the field of digital information transmission, and in particular to a method and device for monitoring an optical distributed data acquisition and control ring network. 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 methods. In specific environments such as highway tunnels and urban pipe corridors, due to the wide distribution of equipment, traditional monitoring and control methods can no longer fully meet existing needs. The optical distributed acquisition and control ring network monitoring method came into being, providing a solution for realizing high-reliability, high-performance and easy-to-maintain intelligent monitoring.

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

[0004] The present invention provides a method and device for monitoring an optical distributed acquisition and control ring network, so as to solve the problems that communication traffic and host load change over time, which easily lead to link congestion and resource waste; rely on a fixed bandwidth allocation strategy, cannot dynamically respond to traffic changes, easily lead to the situation that when the network load bursts, the non-congested path cannot quickly respond to the diversion demand, the priority of the congested path is not reduced, resulting in link overload or even communication interruption; the bandwidth allocation strategy lacks the guidance of historical load data, resulting in uneven resource allocation; the backup switching speed cannot adapt to the network load change in real time, there are differences in the load adaptability of the slaves, and the slave communication frequency is not matched with the sampling frequency of the detection equipment, resulting in signal loss or low sampling efficiency; the external interference cannot be dynamically included in the fitness evaluation, affecting the communication performance in a complex environment.

[0005] The present invention provides a method and device for monitoring an optical distributed data acquisition and control ring network, which specifically includes the following technical solutions: A method for monitoring an optical distributed data acquisition and control ring network comprises the following steps: S1: collect the hardware performance indicators of each host and the link properties between hosts in real time, 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 different hosts; S2: Based on the transmission load factors between different hosts, the dual redundant backup switching responsiveness is calculated using the dual redundant backup switching responsiveness dynamic evaluation algorithm; S3: 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 the communication stability dynamic evaluation algorithm; S4: Based on the communication stability of the optical distributed control ring network, the signal adaptation algorithm is used to calculate the signal adaptation degree between the slave and the detection device.

[0006] Preferably, 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.

[0007] Preferably, 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.

[0008] Preferably, the S1 specifically includes: The calculation formula for the transmission load factor is: , in, Indicates time Host To the host The transmission load factor; 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; represents the dynamic bandwidth gain; represents the adaptive bandwidth allocation factor; Indicates time Host Total load pressure; Indicates time Host To the host The transmission load factor; Indicates the number of hosts.

[0009] Preferably, 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.

[0010] Preferably, 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.

[0011] Preferably, 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; the specific formula is: , in, Indicates the communication stability of the optical distributed control ring network; Indicates time Dual redundant backup switching responsiveness; Indicates the availability of the slave; is the sum of the availability of all slaves; Indicates the total length of the slave ring link; Indicates slave Load adjustment factor; represents the link congestion prediction factor; The weight coefficient representing the rate of change of transmission load; Indicates the rate of change of transmission load; Indicates the weight coefficient of load change acceleration; Indicates the acceleration of the transmission load change.

[0012] Preferably, the S4 specifically includes: The signal adaptation algorithm takes the optical distributed control ring network communication stability 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: , in, Indicates slave and testing equipment At the moment Signal adaptability; Indicates the communication stability of the slave ring; Indicates slave The square of the communication frequency; Indicates testing equipment The square of the sampling frequency; Indicates slave To testing equipment Link length The natural logarithm of represents the dynamic adaptation interference factor; Express Weighted summation of interference source signals; Indicates The interference source 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; Represents the distance decay weight.

[0013] A monitoring device for an optical distributed acquisition and control ring network 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 is connected to the main line of the optical fiber module in an integrated ring; the slave ring is an optical distributed control ring network, including slave devices for distributed control and detection; the slave devices are connected to the slave line of the optical fiber module in an integrated ring, and the slave devices include at least one detection device.

[0014] Preferably, the operation of the optical distributed acquisition and control ring network monitoring device relies 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.

[0015] The beneficial effects of the technical solution of the present invention are: 1. By collecting host hardware performance indicators, link properties and operating parameters of the optical distributed core ring network in real time, comprehensively evaluating the transmission load factors between hosts, and dynamically optimizing the communication load distribution of the optical distributed core ring network, the probability of link congestion is significantly reduced, the utilization efficiency of communication resources is improved, the overall communication delay is reduced, the flow adaptability of the ring network is enhanced, and stability is achieved in sudden high-flow scenarios.

[0016] 2. Smooth short-term fluctuations through sliding time windows, combine transmission load factors with redundant backup status, evaluate dual redundant backup switching responsiveness, introduce exponential decay function, and quickly reduce response time when load exceeds threshold. Dynamically adjust redundant switching strategy, improve efficiency of dual redundant backup switching, ensure communication continuity in single or multiple point failures, and reduce the risk of communication interruption caused by network failure switching delays.

[0017] 3. Comprehensively utilize the slave availability, slave ring link length, load adjustment coefficient and link congestion prediction factor to dynamically calculate the communication stability of the optical distributed core ring network in real time, improve the adaptability to complex traffic scenarios, significantly reduce sudden bottleneck problems in the communication process, and achieve load balancing and dynamic adjustment, thereby improving the overall stability of the communication process and ensuring smooth operation by predicting potential congested areas.

[0018] 4. Based on the communication stability of the optical distributed core ring network, combined with the characteristics of the slave communication frequency and the detection equipment sampling frequency, the signal adaptation between the slave and the detection equipment is dynamically optimized, which improves the reliability and matching of the signal transmission between the slave and the detection equipment, reduces the attenuation and error caused by distance or interference during signal transmission, and enhances the signal quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an optical distributed data acquisition and control ring network monitoring device according to the present invention; Figure 2 This is an operation module diagram of an optical distributed data acquisition and control ring network monitoring device according to the present invention; Figure 3 This is a flow chart of a method for monitoring an optical distributed data acquisition and control ring network according to the present invention. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0022] The following is a detailed description of a method and device for monitoring an optical distributed data acquisition and control ring network provided by the present invention in conjunction with the accompanying drawings.

[0023] See attached Figure 1, which shows a 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, the host device relies on the optical fiber module main road integrated ring communication connection; 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 rely on the optical fiber module slave road integrated ring communication connection, and the slave devices include at least one detection device.

[0024] At the same time, the operation of the optical distributed acquisition and control ring network monitoring device depends on the coordinated work of a series of modules, such as the attached Figure 2 As shown, it includes 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; Data acquisition module: acquires optical distributed acquisition and control ring network data in real time, such as hardware performance indicators of the host, link attributes, and real-time operating parameters of the optical distributed core ring network; and monitors the signal strength of the interference source in real time, outputs the acquired 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 of the data acquisition module, 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 of the data acquisition module and the transmission load factor between different hosts of the transmission load factor calculation module, 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 of the data acquisition module, the transmission load factor between different hosts of the transmission load factor calculation module, and the dual redundant backup switching responsiveness of 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; Signal adaptation module: Based on the optical distributed control ring network data of the data acquisition module and the optical distributed control ring network communication stability of the communication stability evaluation module, the signal adaptation algorithm is used to calculate the signal adaptability between the slave and the detection device.

[0025] See attached Figure 3, which shows a flow chart of a method for monitoring an optical distributed acquisition and control ring network provided by an embodiment of the present invention, the method comprising the following steps: S1. Collect the hardware performance indicators of each host and the link properties between the hosts in real time, 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 different hosts; Collect the hardware performance indicators of each host (such as processing power and cache capacity) and the link properties between hosts (such as physical distance) in real time, and obtain the real-time operating parameters of the optical distributed core ring network, such as congestion status and load distribution; The ring network communication load calculation algorithm is used to calculate the transmission load factor between different hosts, which is used to measure the real-time load status of the link between hosts; 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, reducing latency, and improving communication efficiency. It is highly flexible and can adapt to changes in the traffic of the optical distributed core ring network in real time, and ensure the stability and fault resistance of the optical distributed core ring network. Specifically, the communication load bearing capacity of the host is calculated based on the processing power and cache capacity of each host; the physical distance of the link between the hosts is combined to consider the real-time congestion status of the optical distributed core ring network; the communication load adjustment coefficient is a parameter used to describe the host's dynamic adjustment capability for communication traffic. Different hosts may exhibit different communication adaptability due to hardware performance, load history records 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 high traffic or burst load conditions, which can help the ring network communication load calculation algorithm give priority to hosts suitable for transmission and reduce congestion; by dynamically monitoring the traffic congestion between hosts, the link congestion level is introduced as a penalty factor into the calculation to reduce the priority of the congested path, and by analyzing the historical data distribution of the host, the host's current bandwidth allocation strategy is dynamically adjusted. The bandwidth allocation strategy is based on the host's historical load situation, dynamically predicts future bandwidth requirements, and allocates available resources according to the current cache capacity; The calculation formula for the transmission load factor is: , in, Indicates time Host To the host The transmission load factor; Indicates the host The processing capacity is the maximum amount of data that the host can process per unit time. The unit is data volume / time (such as Mbps or Gbps). It is used to measure the host's computing and data processing capabilities and is determined based on the host device parameters. Indicates the host The cache capacity, in units of data volume (such as MB or GB), is determined based on the host device parameters; Indicates the host To the host The length of the physical link between them, in meters; Indicates the host The communication load adjustment coefficient is dimensionless and is used to adjust the high-load host to avoid communication congestion caused by link overload. It is calculated based on the real-time traffic monitoring data of the host and the link utilization rate. The calculation method is a technical means well known to those skilled in the art and will not be described in detail here. It represents the effect of smoothing the communication load adjustment factor using a logarithmic function; Indicates time Host To the host The link congestion degree, the value range is [0,1), is calculated based on the real-time packet loss rate or link utilization rate, and the calculation method is a technical means well known to those skilled in the art and will not be described in detail here; represents dynamic bandwidth gain, which uses an exponential function to nonlinearly increase the load carrying capacity of high-bandwidth hosts while limiting 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; Indicates time Host Total load pressure; Indicates time Host To the host The transmission load factor; Indicates the number of hosts.

[0026] S2, based on the transmission load factors between different hosts, the dual redundant backup switching responsiveness is calculated using a dual redundant backup switching responsiveness dynamic evaluation algorithm; Based on 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. The dual redundant backup switching responsiveness dynamic evaluation algorithm achieves real-time evaluation of redundant switching efficiency by introducing a time window mechanism, load dynamic weight, and dual redundant backup mechanism status judgment. The time window mechanism uses a sliding time window to smooth short-term fluctuation data. Through a predefined time interval, network performance data is continuously collected within the time interval, including the transmission load factor and the status of the dual redundant backup mechanism. The sliding time window ensures that the calculation result can smoothly reflect the switching response efficiency over a period of time in the past, without losing the overall regularity due to a sudden situation at a certain moment. The state of the dual-redundancy backup mechanism is obtained by logically judging the operating states of the 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 load dynamic weight is to dynamically reflect the impact of the network load on the redundant switching. An exponential decay function is introduced to 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 exponential decay term value will decrease rapidly, indicating that the switching needs to be completed quickly. Otherwise, no processing is required. The calculation formula for dual redundant backup switching responsiveness is: , in, Indicates time Dual redundant backup switching responsiveness; Represents the integral operation, from the moment To time Cumulative calculation within the time window is used to calculate the past The average response time within the time window to eliminate random fluctuations in short periods of time; Indicates the time interval, which can be set according to the specific implementation scenario and is not limited here; Represents the time variable, that is, at any time within the time window, used for integration operations; Indicates time Host To the host The transmission load factor; Indicates the preset transmission load factor threshold, which can be set according to the specific implementation scenario and is not limited here; Represents an exponential decay term. When the transmission load factor exceeds the preset transmission load factor threshold, the exponential decay term value will decrease rapidly, indicating that the switching needs to be completed quickly, providing a dynamic adjustment mechanism that is sensitive to load changes; Indicates the status of the dual redundant backup mechanism. The formula is as follows: , in, Indicates time The host status flag is: if at least one host is operating normally, it is in normal operation and the status is 1; if both hosts fail, the communication is interrupted and the status is 0; Indicates time Host be in normal operating condition; Indicates time Host A malfunction occurs; Indicates time Host be in normal operating condition; Indicates time Host A malfunction occurs; Indicates a logical OR operation. or host If any one of them is operating normally, it is in normal operating state; Represents a logical AND operation. If and only if both hosts fail, the communication is interrupted.

[0027] S3, 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 communication stability dynamic evaluation algorithm; Based on the transmission load factor between different hosts and the responsiveness of dual redundant backup switching, 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. By checking the running status of all slaves one by one, the availability of each slave is summarized into an overall indicator, where 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; Furthermore, the influence of the slave load adjustment coefficient is considered by reflecting the ability of the slave ring to adapt to different loads and scaling the influence with logarithmic operations to avoid the interference of extreme values ​​on the evaluation results; The link congestion prediction factor calculates the rate and acceleration of load change through the first-order derivative and the second-order 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; The calculation formula for slave ring communication stability is: , in, Indicates the communication stability of the optical distributed control ring network; Indicates time Dual redundant backup switching responsiveness; Indicates the availability of the slave; It is the sum of the availability of all slaves, indicating the overall normal operation capability of the slave devices in the slave ring; Indicates the total length of the slave ring link; Indicates slave Load adjustment factor; Indicates slave The logarithm of the load adjustment factor is used to scale the effect of the load adjustment factor on stability to avoid instability caused by direct use of linear changes; represents the link congestion prediction factor, predicting the future communication bottleneck on the link; The weight coefficient representing the rate of change of the transmission load is used to adjust the contribution of the first-order derivative in congestion prediction. It can be set according to the specific implementation scenario and is not limited here. Indicates the transmission load change rate, which is used to reflect the change trend of the transmission load factor over time; The weight coefficient representing the load change acceleration is used to adjust the contribution of the second-order derivative in congestion prediction. It can be set according to the specific implementation scenario and is not limited here. Indicates the acceleration of transmission load change, which is used to reflect the increasing or decreasing trend of the transmission load change rate to predict potential congestion.

[0028] S4. Based on the communication stability of the optical distributed control ring network, the signal adaptation algorithm is used to calculate the signal adaptation degree between the slave and the detection device; Based on the communication stability of the optical distributed control ring network, the signal adaptation algorithm is used to calculate the signal adaptation between the slave 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; the frequency characteristics of the slave and the detection device are taken as the key factors for calculating the signal adaptation. The communication frequency of the slave reflects the rate of the transmission signal, and the sampling frequency of the detection device determines the ability to receive the signal. The frequency matching degree between the slave and the detection device has an important influence on the signal adaptation performance; In the process of signal adaptation, link length is an important influencing factor. The longer the link between the slave and the detection device, the greater the impact of attenuation and delay on the signal during transmission. Link length is introduced as an inhibition factor in adaptation calculation to measure the restrictive effect of physical topology on signal transmission. By performing logarithmic transformation on the link length, the negative impact of long-distance communication on adaptation performance can be effectively weakened. In a complex communication environment, the impact of external interference signals on detection equipment cannot be ignored. By analyzing the signal strength of the interference source and the relative distance between the interference source and the system equipment, the dynamic impact of interference on the adaptation performance can be evaluated. By adjusting the weight of the interference signal, it can adapt to interference environments of different strengths and distributions in real time. The closer the interference source is to the detection equipment, the more significant the impact is, and the farther the distance is, the more the impact will decay exponentially. The calculation formula of signal adaptation is: , in, Indicates slave and testing equipment At the moment The signal adaptability is used to measure the signal matching degree between the slave and the detection device in communication, and is used to reflect the reliability and efficiency of transmission; Indicates the communication stability of the slave ring; Indicates slave The square operation reflects the importance of communication frequency to signal adaptation and enhances the influence weight of high-frequency slave devices in adaptation. Indicates testing equipment The sampling frequency is squared, and the square operation enhances the adaptation weight of high-frequency detection equipment; Indicates slave To testing equipment Link length The natural logarithm of is used to adjust the effect of link length on the adaptability. The logarithmic value is used to reduce the negative effect of long-distance links on the adaptability performance. represents the dynamic adaptation interference factor; Express Weighted summation of interference source signals; Indicates The interference source at time The signal strength of the interference source is obtained through real-time monitoring; Indicates The equivalent distance between each interference source and the slave and detection equipment; Indicates the reference distance of interference attenuation, which is used to normalize the attenuation weight of the distance and can be set according to the specific implementation scenario and is not limited here; Represents the distance attenuation weight, which is used to reflect the nonlinear characteristics of the interference signal attenuating with distance.

[0029] The signal adaptation algorithm provides strong technical support for the efficient operation of the optical distributed acquisition and control ring network through comprehensive analysis and dynamic adaptation of key parameters of signal transmission.

[0030] In summary, a method and device for monitoring an optical distributed data acquisition and control ring network have been completed.

[0031] The order of the embodiments of the invention is for description only and does not represent the advantages and disadvantages 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.

[0032] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in 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, 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 different hosts; S2: Based on the transmission load factors between different hosts, the dual redundant backup switching responsiveness is calculated using the dual redundant backup switching responsiveness dynamic evaluation algorithm; S3: 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 the communication stability dynamic evaluation algorithm; S4: Based on the communication stability of the optical distributed control ring network, the signal adaptation algorithm is used to calculate the signal adaptation degree between the slave and the detection device.

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 data acquisition and control ring network monitoring method according to claim 3 is characterized in that: The S1 specifically includes: The calculation formula for the transmission load factor is: ， in, Indicates time Host To the host The transmission load factor; 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; represents the dynamic bandwidth gain; represents the adaptive bandwidth allocation factor; Indicates time Host Total load pressure; Indicates time Host To the host The transmission load factor; Indicates the number of hosts.

5. The optical distributed data 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.

6. The optical distributed data acquisition and control ring network monitoring method according to claim 5 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.

7. The optical distributed data acquisition and control ring network monitoring method according to claim 1, 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; the specific formula is: ， in, Indicates the communication stability of the optical distributed control ring network; Indicates time Dual redundant backup switching responsiveness; Indicates the availability of the slave; is the sum of the availability of all slaves; Indicates the total length of the slave ring link; Indicates slave Load adjustment factor; represents the link congestion prediction factor; The weight coefficient representing the rate of change of transmission load; Indicates the rate of change of transmission load; Indicates the weight coefficient of load change acceleration; Indicates the acceleration of the transmission load change.

8. 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 optical distributed control ring network communication stability 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: ， in, Indicates slave and testing equipment At the moment Signal adaptability; Indicates the communication stability of the slave ring; Indicates slave The square of the communication frequency; Indicates testing equipment The square of the sampling frequency; Indicates slave To testing equipment Link length The natural logarithm of represents the dynamic adaptation interference factor; Express Weighted summation of interference source signals; Indicates The interference source 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; Represents the distance decay weight.

9. 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.

10. The optical distributed data acquisition and control ring network monitoring device according to claim 9, 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 device.

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