Distributed acquisition and control networking method

Abstract

The invention relates to the field of telecommunication, in particular to a distributed acquisition and control networking method. The method comprises the following steps: optical distributed acquisition and control host equipment is in communication connection to form an optical distributed acquisition and control host core looped network; the two optical distributed acquisition and control host devices control one slave optical fiber hand-in-hand connection device to perform management and communication dual-machine redundancy between the two optical distributed acquisition and control host devices, and the two optical distributed acquisition and control host devices form an optical distributed control looped network; the slave optical fiber hand-in-hand connected equipment module is linked with the detection equipment, and the data acquisition efficiency of the optical distributed control ring network is calculated; judging whether one of the optical distributed acquisition and control host equipment is in a disconnected state or not; and calculating the time delay of the slave optical fiber hand-in-hand connection equipment communication connection detection equipment. The problem that monitoring and control are directly influenced by communication interruption among equipment in a part of areas in optical fiber communication is solved; and after the optical distribution type acquisition and control host equipment breaks down, the whole networking cannot work if the dual-redundancy backup is lacked, and the like.

Description

Technical Field

[0001] The present invention relates to the field of electrical communications, and in particular to a distributed acquisition and control networking method. Background Art

[0002] A distributed acquisition and control networking method aims to achieve centralized monitoring and distributed control of various types of equipment, and improve safety, stability and maintenance efficiency. However, the existing distributed acquisition and control networking method has the following technical problems: In fiber-optic communications, due to the large number of nodes and long links, insufficient communication power, attenuation of optical signals and unbalanced loads may all lead to unstable communications. Communication interruptions between devices in some areas will directly affect monitoring and control. Due to low link transmission efficiency and unreasonable data sampling frequency, the acquisition efficiency is low and environmental changes cannot be reflected in a timely manner. After a host device fails, if there is a lack of backup, the entire network will not work. The single host structure in the traditional system cannot meet the reliability requirements and cannot achieve automatic switching of the host device. The data transmission delay directly affects the response speed of the distributed acquisition and control network, especially for urgent data and high-priority tasks. Excessive transmission delay will lead to delayed response and threaten the security of the system. Summary of the invention

[0003] The present invention provides a distributed acquisition and control networking method to solve the problems in optical fiber communication, such as a large number of nodes, a long link, insufficient communication power, attenuation of optical signals and unbalanced loads, which may lead to unstable communication, and communication interruption between devices in some areas will directly affect monitoring and control; low link transmission efficiency and unreasonable data sampling frequency will lead to low acquisition efficiency and inability to timely reflect environmental changes; after a failure of an optical distributed acquisition and control host device, if there is a lack of dual redundant backup, the entire network will not work, and the single host structure in the traditional system cannot meet the reliability requirements, and automatic switching of the optical distributed acquisition and control host device cannot be achieved; the delay of data transmission directly affects the response speed of the distributed acquisition and control networking, especially for urgent data and high-priority tasks, excessive transmission delay will lead to response lag, threatening the security of the system.

[0004] A distributed acquisition and control networking method comprises the following steps: S1: The optical distributed acquisition and control host equipment is connected for communication, and a ring topology is used to form the optical distributed acquisition and control host core ring network; the communication stability of the optical distributed acquisition and control host core ring network is calculated based on the optical distributed acquisition and control host core ring network communication stability calculation algorithm; S2: Two optical distributed acquisition and control host devices control a slave device connected by optical fiber hand in hand for management and communication dual-machine redundancy. The two optical distributed acquisition and control hosts form an optical distributed control ring network. Based on the communication stability of the core ring network of the optical distributed acquisition and control host, the reliability of the optical distributed control ring network is calculated; S3: The device modules connected hand in hand from the optical fiber link detection device and calculate the data collection efficiency of the optical distributed control ring network; S4: Determine whether one of the optical distributed acquisition and control host devices is in a disconnected state; S5: The slave optical fiber hand-in-hand connected device communication connection detection device calculates the delay of the slave optical fiber hand-in-hand connected device communication connection detection device during the communication process between the slave optical fiber hand-in-hand connected device and the detection device.

[0005] Preferably, the S1 specifically includes: The communication stability calculation algorithm of the core ring network of the optical distributed acquisition and control host analyzes the communication performance of each optical distributed acquisition and control host device. Each optical distributed acquisition and control host device will send and receive data packets to the switch. At the same time, the characteristic that the optical signal gradually weakens with the distance between the optical distributed acquisition and control host device and the switch is introduced, and based on the relationship between the current network load and the maximum load supported by the core ring network of the optical distributed acquisition and control host, the load situation of each optical distributed acquisition and control host device is normalized.

[0006] Preferably, the S2 specifically includes: The reliability of the optical distributed control ring network is calculated by the reliability evaluation algorithm of the optical distributed control ring network; the reliability evaluation algorithm of the optical distributed control ring network integrates the availability, link distance and signal loss of the devices connected hand in hand by the optical fiber of each slave in the optical distributed control ring network; the calculation formula of the reliability of the optical distributed control ring network is: , in, Indicates Reliability of an optical distributed control ring network; Indicates the communication stability of the core ring network of the optical distributed acquisition and control host; Indicates the symbol for finding the product. Multiply the reliability factors of all devices connected hand in hand by slave optical fibers in an optical distributed control ring network; Indicates The number of devices connected hand in hand by slave optical fibers in an optical distributed control ring network; Indicates In an optical distributed control ring network Availability of devices connected hand in hand with slave optical fiber; Represents the optical signal loss factor of the optical distributed control ring network; represents a second optical signal loss coefficient; Indicates In the optical distributed control ring network, from the optical distributed acquisition and control host device to the The link distance of the devices connected hand in hand by the slave optical fiber; A sine function representing the link distance is used to map the ratio of the link distance to a nonlinear weight value; Indicates The total distance of an optical distributed control ring network link.

[0007] Preferably, the S3 specifically includes: A data acquisition efficiency calculation algorithm is used to calculate the data acquisition efficiency of the optical distributed control ring network; the data acquisition efficiency calculation algorithm is directly affected by the reliability of the optical distributed control ring network, the data volume of the detection equipment and the sampling frequency of the detection equipment, and is indirectly affected by the link distance between the detection equipment and the connected slave optical fiber hand-in-hand connected device and the maximum allowable link distance between the detection equipment and the connected slave optical fiber hand-in-hand connected device.

[0008] Preferably, the S3 specifically includes: The calculation formula for the data acquisition efficiency of the optical distributed control ring network is: , in, Indicates Data collection efficiency of an optical distributed control ring network; Indicates Reliability of an optical distributed control ring network; Indicates The number of detection devices in an optical distributed control ring network; Indicates In an optical distributed control ring network The amount of data from each detection device; Indicates In an optical distributed control ring network The sampling frequency of each detection device; Indicates In an optical distributed control ring network The link distance between a detection device and the device connected hand in hand with the slave optical fiber; Indicates the maximum permissible link distance between the detection device and the device connected hand-in-hand with the slave optical fiber; Indicates In an optical distributed control ring network The power of each detection device; represents the standard deviation of the noise; Indicates The background noise of the detection equipment.

[0009] Preferably, the S4 specifically includes: When one of the optical distributed acquisition and control host devices is in a disconnected state, the other optical distributed acquisition and control host device communicates with the device connected hand-in-hand with the slave optical fiber. Conversely, the two optical distributed acquisition and control host devices simultaneously communicate with the device connected hand-in-hand with the slave optical fiber.

[0010] Preferably, the S5 specifically includes: The communication transmission delay calculation algorithm is used to calculate the delay of the communication connection detection device of the device connected hand in hand by the slave optical fiber; the communication transmission delay calculation algorithm will automatically detect and switch to the backup optical distributed acquisition and control host when the redundant optical distributed acquisition and control host fails; when all optical distributed acquisition and control hosts fail, the status will be recorded and an alarm will be issued to stop non-critical data transmission; and then the priority of the data on the transmission path will be dynamically adjusted according to the load conditions, data packet size, response time and transmission rate of the communication process between the device connected hand in hand by the slave optical fiber and the detection device.

[0011] Preferably, the S5 specifically includes: In the communication transmission delay calculation algorithm, a dynamic management mechanism is introduced, and the waiting coefficient is used to reflect the queuing time of the data packet in the network; the specific formula is as follows: , in, Indicates the delay of the communication connection detection device of the device connected hand in hand from the machine optical fiber; Express The data packets are summed; Indicates The size of the data packet; Indicates The importance of each data packet; Indicates Response time requirements for each data packet; Indicates The transmission rate of packets; Indicates The waiting coefficient of the data packets; Indicates the total transmission rate; Indicates infinity; Indicates the status of the optical distributed acquisition and control host.

[0012] The beneficial effects of the technical solution of the present invention are: 1. The core ring network of the optical distributed acquisition and control host ensures efficient communication between multi-area controllers. Through redundant design and load balancing, it can still maintain stable operation under high load and fault conditions, maintain stable communication performance in complex environments, ensure real-time transmission of key data, improve the reliability and robustness of the communication network, and avoid control failures caused by network failures.

[0013] 2. The optical distributed control ring network connects the regional controller and the optical fiber IO module, realizing the self-healing function of the distributed acquisition and control network, improving the anti-interference and recovery capabilities. Even if some links are broken, it can still maintain operation, thus improving the availability of the optical distributed control ring network.

[0014] 3. Dual redundant backup is adopted, and seamless switching between optically distributed acquisition and control hosts is realized through the status monitoring logic of the optically distributed acquisition and control hosts. When an optically distributed acquisition and control host fails, the backup optically distributed acquisition and control host can take over the task immediately, ensuring the continuous operation and availability of the distributed acquisition and control network, and avoiding the network from being unable to work due to a single point failure.

[0015] 4. The communication path between the fiber optic IO module and the detection equipment is dynamically adjusted according to the data priority and response time to ensure that important data is transmitted first, reduce the transmission delay of low-priority data, and ensure that important control signals in emergency situations can be transmitted in time, thereby improving safety and providing guarantee for control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flow chart of a distributed acquisition and control networking method described in the present invention. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] The specific scheme of a distributed acquisition and control networking method provided by the present invention is described in detail below with reference to the accompanying drawings.

[0020] See attached Figure 1, which shows a flow chart of a distributed acquisition and control networking method provided by an embodiment of the present invention, the method comprising the following steps: S1. The optical distributed acquisition and control host equipment is connected for communication, and a ring topology is used to form an optical distributed acquisition and control host core ring network; the communication stability of the optical distributed acquisition and control host core ring network is calculated based on the optical distributed acquisition and control host core ring network communication stability calculation algorithm; The optical distributed acquisition and control host equipment (regional controller) is connected to the communication, and a ring topology is used to form the optical distributed acquisition and control host core ring network. In order to discover and solve the communication bottleneck in operation in advance, and provide a comprehensive and accurate communication status analysis, the optical distributed acquisition and control host core ring network communication stability calculation algorithm is used to calculate the communication stability of the optical distributed acquisition and control host core ring network; The optical distributed acquisition and control host core ring network communication stability calculation algorithm analyzes the communication performance of each regional controller one by one. Each regional controller sends and receives data packets to the switch, and the data transmission capacity is determined by the communication power and communication capacity of the regional controller. The higher the communication power, the stronger the optical signal, and the more stable the data transmission. The communication capacity represents the amount of data that each regional controller can process. If the communication capacity is exceeded, bottlenecks are likely to occur. The communication power and communication capacity are combined to ensure that all regional controllers in the optical distributed acquisition and control host core ring network can work stably. When dealing with optical signal attenuation, the characteristic that optical signals gradually weaken with distance is introduced. As the distance between the zone controller and the switch increases, the optical signal will continue to attenuate, thereby reducing the transmission quality. At the same time, the speed of optical signal attenuation is related to the physical characteristics of the optical fiber and is expressed as a fixed coefficient. Each regional controller processes different traffic at different times. The higher the load, the more likely it is to cause communication instability. It is necessary to consider the relationship between the current network load and the maximum load supported by the core ring network of the optical distributed acquisition and control host. If the load in a certain period of time is close to the maximum load supported by the core ring network of the optical distributed acquisition and control host, the communication stability will decrease. The load of each regional controller is normalized to ensure that the load is reasonably distributed among all regional controllers. The calculation formula for the communication stability of the core ring network of the optical distributed acquisition and control host is: , in, Indicates the communication stability of the core ring network of the optical distributed acquisition and control host; Express The communication parameters of the optical distributed acquisition and control host devices (regional controllers) are averaged, and the average contribution of each regional controller to communication stability is calculated; Indicates the number of regional controller nodes; Indicates The communication power of each regional controller. The higher the communication power, the stronger the optical signal and the better the transmission quality. Indicates The communication capacity of a regional controller reflects the maximum communication bandwidth capability of the regional controller under ideal conditions; It represents the optical signal attenuation item of the core ring network of the optical distributed acquisition and control host. It uses an exponential attenuation function to describe the characteristic that the optical signal gradually attenuates as the distance between the regional controller and the switch increases. represents the first optical signal loss coefficient, which is selected according to the attenuation characteristics of the optical fiber type; Indicates The distance between the regional controller and the switch; Represents the load factor, using the cosine function to simulate the impact of load changes on communication stability; Represents a quarter period and is used to calculate the cosine value corresponding to the ratio between the current load and the maximum load; Indicates The load of each zone controller; Indicates the maximum load supported by the core ring network of the optical distributed acquisition and control host; S2. Two optical distributed acquisition and control host devices control a slave optical fiber hand-in-hand connected device for management and communication dual-machine redundancy. The two optical distributed acquisition and control hosts form an optical distributed control ring network. Based on the communication stability of the core ring network of the optical distributed acquisition and control host, the reliability of the optical distributed control ring network is calculated; Two optical distributed acquisition and control host devices (regional controllers) control a slave optical fiber hand-in-hand connected device (optical fiber IO module) for management and communication dual-machine redundancy, and the two optical distributed acquisition and control hosts form an optical distributed control ring network; in order to ensure the reliable communication between the regional controller and the optical fiber IO module in a complex optical fiber network, based on the communication stability of the core ring network of the optical distributed acquisition and control host, the reliability of the optical distributed control ring network is calculated using the reliability evaluation algorithm of the optical distributed control ring network; The reliability evaluation algorithm of the optical distributed control ring network integrates the availability, link distance and optical signal loss of each optical fiber IO module in the optical distributed control ring network; the availability of the optical fiber IO module reflects whether the optical fiber IO module can work normally at a certain moment. The higher the availability, the stronger the operation reliability of the optical fiber IO module. The availability of each optical fiber IO module will be evaluated based on historical data and the current working status of the optical fiber IO module monitored in real time; historical data refers to the working status record of the optical fiber IO module during the past operation process, including the operation time, the number of faults, the fault time point, and the recovery time; the link distance and the optical signal attenuation show a nonlinear relationship. The longer the link distance, the greater the optical signal loss, and the cumulative effect of the optical signal loss will be estimated section by section based on the total distance of the link and the physical characteristics of the optical signal; The calculation formula for the reliability of the optical distributed control ring network is: , in, Indicates The reliability of the optical distributed control ring network is used to measure the The operational reliability of an optical distributed control ring network under various link conditions; Indicates the communication stability of the core ring network of the optical distributed acquisition and control host; Indicates the symbol for finding the product. The reliability factors of all optical fiber IO modules in an optical distributed control ring network are multiplied; Indicates The number of fiber IO modules in an optical distributed control ring network; Indicates In an optical distributed control ring network The availability of each fiber IO module is calculated based on historical data and will not be described in detail here. It represents the optical signal loss factor of the optical distributed control ring network, using an exponential decay function to reflect the loss of the optical signal caused by the link distance during the transmission process; represents the second optical signal loss coefficient, which is selected according to the attenuation characteristics of the optical fiber type; Indicates In an optical distributed control ring network, from the regional controller to the Link distance of a fiber IO module; A sine function representing the link distance is used to map the ratio of the link distance to a nonlinear weight value; Indicates Total distance of optical distributed control ring network links; S3, link detection equipment with device modules connected hand in hand with slave optical fiber, and calculate the data collection efficiency of optical distributed control ring network; The device modules (optical fiber IO modules) connected by the slave optical fiber hand in hand link the detection equipment, but because the data transmission link will be affected in a specific environment, the collection efficiency and real-time performance of the data are particularly important. The data collection efficiency calculation algorithm is used to calculate the data collection efficiency of the optical distributed control ring network; The data acquisition efficiency calculation algorithm is directly affected by the reliability of the optical distributed control ring network, the data volume of the detection device and the sampling frequency of the detection device, and is indirectly affected by the ratio of the link distance between the detection device and the connected optical fiber IO module to the maximum allowable link distance between the detection device and the connected optical fiber IO module; The power level of the detection equipment is also one of the important factors affecting the efficiency of data collection. The power of the detection equipment can enhance the intensity of the optical signal and keep the data stable during the transmission process. However, the background noise and the noise of the detection equipment itself need to be considered. The existence of noise will interfere with the accuracy of data collection. The calculation formula for the data acquisition efficiency of the optical distributed control ring network is: , in, Indicates Data collection efficiency of an optical distributed control ring network; Indicates Reliability of an optical distributed control ring network; Indicates The cumulative sum of all detection devices in an optical distributed control ring network; Indicates The number of detection devices in an optical distributed control ring network; Indicates In an optical distributed control ring network The amount of data from each detection device; Indicates In an optical distributed control ring network The sampling frequency of each detection device; Indicates In an optical distributed control ring network The link distance between a detection device and the connected fiber IO module; Indicates the maximum allowable link distance between the detection device and the connected optical fiber IO module; It represents the logarithm with base 2, which is used to reflect the nonlinear effect of signal-to-noise ratio; Indicates In an optical distributed control ring network The power of each detection device; Indicates the standard deviation of the noise, reflecting the degree of noise dispersion; Indicates The background noise of each detection device; S4, determining whether one of the optical distributed acquisition and control host devices is in a disconnected state; If one of the optical distributed acquisition and control host devices is in a disconnected state, the other optical distributed acquisition and control host device will communicate with the device connected hand in hand with the slave optical fiber. Conversely, the two optical distributed acquisition and control host devices will communicate with the device connected hand in hand with the slave optical fiber at the same time. The formula is as follows: , in, Indicates the status flag of the optical distributed acquisition and control host. If at least one optical distributed acquisition and control host device is working normally, it is in normal operation state and the status is 1. If both optical distributed acquisition and control host devices fail, it is in communication interruption state and the status is 0. Indicates logical OR operation. As long as any optical distributed acquisition and control host device operates normally, it is in normal operation state. Indicates logical AND operation. If and only if both optical distributed acquisition and control host devices fail, the communication is interrupted. S5, the slave optical fiber hand-in-hand connected device communication connection detection device, in the process of communication between the slave optical fiber hand-in-hand connected device and the detection device, calculate the delay of the slave optical fiber hand-in-hand connected device communication connection detection device; The device (optical fiber IO module) connected hand in hand by the slave optical fiber is communicated with the detection device. During the communication process between the optical fiber IO module and the detection device, the communication transmission delay calculation algorithm is used to calculate the delay of the optical fiber IO module communication connection detection device; The communication transmission delay calculation algorithm uses dual redundant backup, that is, when the redundant optical distributed acquisition and control host device fails, it will automatically detect and switch to the backup optical distributed acquisition and control host device, ensuring the continuity of communication. Even if a single optical distributed acquisition and control host device fails, it will not affect the transmission of data. If all optical distributed acquisition and control host devices fail, they will record the status and issue an alarm, stop non-critical data transmission, and ensure the transmission of important data; and then dynamically adjust the priority of data on the transmission path according to the load condition, data packet size, response time and transmission rate of the communication process between the optical fiber IO module and the detection device, to ensure the stability and real-time performance of communication, and be able to optimize data flow when network conditions change to avoid communication congestion; The size of each data packet affects the priority during the communication process. The weight of the data packet determines whether it can be processed first during the transmission process. By adjusting the weight, it is possible to avoid occupying too much bandwidth and ensure that important data can be transmitted first, such as the priority processing of alarm information in the event of a system failure. The response time of the data packet determines the rapid response capability. During the communication process, the time required for the data packet to be sent and received is detected in real time. For critical data, the shorter the response time, the better. Data packets with extremely long response times are delayed to transmit important data in advance. The waiting coefficient is used to reflect the queuing time of data packets in the network. If the waiting time of a data flow is too long, its priority will be adjusted to advance its delivery to avoid data loss or accumulation of communication delays. A dynamic management mechanism is introduced to enable orderly operation under high concurrency. The calculation formula for the delay of the optical fiber IO module communication connection detection device is: , in, Indicates the delay of the optical fiber IO module communication connection detection device; Express The data packets are summed; Indicates The size of the data packet; Indicates The importance of each data packet; Indicates The response time requirement of each data packet ensures real-time performance; It represents the logarithmic term, which is used to reflect the relationship between the data packet transmission rate and the waiting coefficient. The logarithmic function ensures the smoothness of data transmission under different load conditions; Indicates The transmission rate of packets; Indicates The waiting coefficient of the data packets; Indicates the total transmission rate, which is used to normalize the calculation delay; Indicates infinity, that is, when all optical distributed acquisition and control host devices fail, uploading cannot be performed.

[0021] In summary, a distributed acquisition and control networking method has been completed.

[0022] 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.

[0023] 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.

[0024] 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 distributed acquisition and control networking method, characterized in that: The following steps are involved: S1: The optical distributed acquisition and control host equipment is connected for communication, and a ring topology is used to form the optical distributed acquisition and control host core ring network; the communication stability of the optical distributed acquisition and control host core ring network is calculated based on the optical distributed acquisition and control host core ring network communication stability calculation algorithm; S2: Two optical distributed acquisition and control host devices control a slave device connected by optical fiber hand in hand for management and communication dual-machine redundancy. The two optical distributed acquisition and control hosts form an optical distributed control ring network. Based on the communication stability of the core ring network of the optical distributed acquisition and control host, the reliability of the optical distributed control ring network is calculated; S3: The device modules connected hand in hand from the optical fiber link detection device and calculate the data collection efficiency of the optical distributed control ring network; S4: Determine whether one of the optical distributed acquisition and control host devices is in a disconnected state; S5: The slave optical fiber hand-in-hand connected device communication connection detection device calculates the delay of the slave optical fiber hand-in-hand connected device communication connection detection device during the communication process between the slave optical fiber hand-in-hand connected device and the detection device.

2. The distributed acquisition and control networking method according to claim 1 is characterized in that: The S1 specifically includes: The communication stability calculation algorithm of the core ring network of the optical distributed acquisition and control host analyzes the communication performance of each optical distributed acquisition and control host device. Each optical distributed acquisition and control host device will send and receive data packets to the switch. At the same time, the characteristic that the optical signal gradually weakens with the distance between the optical distributed acquisition and control host device and the switch is introduced, and based on the relationship between the current network load and the maximum load supported by the core ring network of the optical distributed acquisition and control host, the load situation of each optical distributed acquisition and control host device is normalized.

3. The distributed acquisition and control networking method according to claim 1 is characterized in that: The S2 specifically includes: The reliability of the optical distributed control ring network is calculated by the reliability evaluation algorithm of the optical distributed control ring network; the reliability evaluation algorithm of the optical distributed control ring network integrates the availability, link distance and signal loss of the devices connected hand in hand by the optical fiber of each slave in the optical distributed control ring network; the calculation formula of the reliability of the optical distributed control ring network is: ， in, Indicates Reliability of an optical distributed control ring network; Indicates the communication stability of the core ring network of the optical distributed acquisition and control host; Indicates the symbol for finding the product. Multiply the reliability factors of all devices connected hand in hand by slave optical fibers in an optical distributed control ring network; Indicates The number of devices connected hand in hand by slave optical fibers in an optical distributed control ring network; Indicates The first optical distributed control ring network Availability of devices connected hand in hand with slave optical fiber; Represents the optical signal loss factor of the optical distributed control ring network; represents a second optical signal loss coefficient; Indicates In the optical distributed control ring network, from the optical distributed acquisition and control host device to the The link distance of the devices connected hand in hand by the slave optical fiber; A sine function representing the link distance is used to map the ratio of the link distance to a nonlinear weight value; Indicates The total distance of an optical distributed control ring network link.

4. The distributed acquisition and control networking method according to claim 1, characterized in that: The S3 specifically includes: A data acquisition efficiency calculation algorithm is used to calculate the data acquisition efficiency of the optical distributed control ring network; the data acquisition efficiency calculation algorithm is directly affected by the reliability of the optical distributed control ring network, the data volume of the detection equipment and the sampling frequency of the detection equipment, and is indirectly affected by the link distance between the detection equipment and the connected slave optical fiber hand-in-hand connected device and the maximum allowable link distance between the detection equipment and the connected slave optical fiber hand-in-hand connected device.

5. The distributed acquisition and control networking method according to claim 4 is characterized in that: The S3 specifically includes: The calculation formula for the data acquisition efficiency of the optical distributed control ring network is: ， in, Indicates Data collection efficiency of an optical distributed control ring network; Indicates Reliability of an optical distributed control ring network; Indicates The number of detection devices in an optical distributed control ring network; Indicates In an optical distributed control ring network The amount of data from each detection device; Indicates The first optical distributed control ring network The sampling frequency of each detection device; Indicates The first optical distributed control ring network The link distance between a detection device and the device connected hand in hand with the slave optical fiber; Indicates the maximum permissible link distance between the detection device and the device connected hand-in-hand with the slave optical fiber; Indicates The first optical distributed control ring network The power of each detection device; represents the standard deviation of the noise; Indicates The background noise of the detection equipment.

6. The distributed acquisition and control networking method according to claim 1, characterized in that: The S4 specifically includes: When one of the optical distributed acquisition and control host devices is in a disconnected state, the other optical distributed acquisition and control host device communicates with the device connected hand-in-hand with the slave optical fiber. Conversely, the two optical distributed acquisition and control host devices simultaneously communicate with the device connected hand-in-hand with the slave optical fiber.

7. The distributed acquisition and control networking method according to claim 1, characterized in that: The S5 specifically includes: The communication transmission delay calculation algorithm is used to calculate the delay of the communication connection detection device of the device connected hand in hand by the slave optical fiber; the communication transmission delay calculation algorithm will automatically detect and switch to the backup optical distributed acquisition and control host when the redundant optical distributed acquisition and control host fails; when all optical distributed acquisition and control hosts fail, the status will be recorded and an alarm will be issued to stop non-critical data transmission; and then the priority of the data on the transmission path will be dynamically adjusted according to the load conditions, data packet size, response time and transmission rate of the communication process between the device connected hand in hand by the slave optical fiber and the detection device.

8. The distributed acquisition and control networking method according to claim 7, characterized in that: The S5 specifically includes: In the communication transmission delay calculation algorithm, a dynamic management mechanism is introduced, and the waiting coefficient is used to reflect the queuing time of the data packet in the network; the specific formula is as follows: ， in, Indicates the delay of the communication connection detection device of the device connected hand in hand from the machine optical fiber; Express The data packets are summed; Indicates The size of the data packet; Indicates The importance of each data packet; Indicates Response time requirements for each data packet; Indicates The transmission rate of packets; Indicates The waiting factor of the data packets; Indicates the total transmission rate; Indicates infinity; Indicates the status of the optical distributed acquisition and control host.

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