An Industrial Internet Handover Management System and Method Based on 5G Communication

Abstract

This invention discloses an industrial internet switching management system and method based on 5G communication, relating to the field of industrial monitoring technology. The system acquires information on all faulty sub-units; determines whether the distribution of faulty sub-units within the factory area meets the prerequisites for 5G network fault diagnosis; if so, analyzes the concentration and interference of the faulty sub-units; performs synchronous and staggered switching between the 5G network and wired network; analyzes the spatial distribution of faulty sub-units as a prerequisite for 5G network fault diagnosis; further analyzes the concentration and interference of faulty sub-units to reduce the possibility of incorrect 5G network fault diagnosis and mitigate the impact on factory operations; automatically determines the 5G network status, realizes switching between the 5G network and wired network, ensures the security of the DCS network, and guarantees stable monitoring of production equipment.

Description

Technical Field

[0001] This invention relates to the field of industrial monitoring technology, specifically to an industrial internet switching management system and method based on 5G communication. Background Technology

[0002] Currently, in the thermal power industry, there is no corresponding equipment for judging 5G network communication faults and for automatically switching between 5G and wired networks. Manual switching is required, which involves going to the site to manually switch from 5G to wired networks. This has extremely low timeliness, taking at least five minutes, which poses a great threat to the timeliness of production monitoring. Summary of the Invention

[0003] The purpose of this invention is to provide an industrial internet handover management system and method based on 5G communication to solve the problems raised in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an industrial internet switching management system based on 5G communication, comprising a network status monitoring module, a network switching module, a network management module, a communication module, and an application module; the network status monitoring module consists of sub-units, each including sensors and a 5G communication module; the sensors are used to acquire on-site data within the plant, and the 5G communication module is used to collect network status information of the sub-units and identify faulty sub-units; the network switching module is used to switch the plant network from a 5G network to a wired network; the network management module, based on the network status of the sub-units, generates a synchronous switching signal to the network switching module when a 5G network fault occurs, and switches the network from the 5G network to the wired network through synchronous switching; the communication module is used to realize interoperability between the 5G network and the wired network; the application module is used to provide in-plant business applications and display the network switching results.

[0005] Specifically, the network management module further includes a clustering unit, a coordinate unit, a distribution analysis unit, a time analysis unit, and an interference analysis unit. The clustering analysis unit divides the faulty sub-units into different clusters based on their location information. The coordinate unit is used to establish a spatial rectangular coordinate system within the factory area. The analysis unit is used to analyze the distribution of faulty sub-units within the factory area. The time analysis unit is used to analyze the temporal concentration of faulty sub-units. The interference analysis unit is used to analyze the impact of interference on the 5G network.

[0006] Specifically, the distribution analysis unit determines the probability of 5G failure based on the area ratio occupied by the faulty sub-unit and historical 5G failure data, and judges whether the distribution of the faulty sub-unit meets the prerequisites for 5G network failure.

[0007] Specifically, the network switching module further includes a delay unit and a switching unit. The delay unit is used to set a delay switching time for staggered switching. The switching unit is used to switch the 5G network to a wired network.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an industrial internet handover management method based on 5G communication, comprising the following steps:

[0009] S11, monitor the status of sub-units within the plant area, and obtain the location information, fault time information and fault type information of all faulty sub-units;

[0010] S12, analyze the location information of the faulty sub-unit, and determine whether the distribution of the faulty sub-unit in the factory area meets the prerequisites for 5G network faults. If the prerequisites for 5G network faults are met, proceed to step S13 to analyze the concentration and interference of the faulty sub-units. If the prerequisites for 5G network faults are not met, perform staggered switching between 5G network and wired network to maintain monitoring of sub-units in the factory area and handle the faulty sub-units.

[0011] When a 5G network fails, it often means that all or most sub-units cannot communicate normally, which is a serious situation that can have a significant impact on factory operations. The primary task at this time is to restore network communication as quickly as possible to minimize losses caused by business interruption. Synchronous handover can quickly switch the network from unavailable 5G to a wired network, restoring communication promptly and preventing the 5G network failure from causing further damage. Furthermore, synchronous handover is simpler and more direct than staggered handover, eliminating the need for complex time delay settings and coordination issues. In a fault state, the system may already be unstable or chaotic; simplified operation reduces the probability of errors or anomalies during handover, facilitating faster network switching and restoring the system to an available state as quickly as possible. Complex synchronous handover may be difficult to achieve under such conditions. After a 5G failure, the system needs to return to a stable operating state as quickly as possible. Synchronous handover allows all sub-units to switch to the wired network simultaneously, enabling unified network connection reconstruction and configuration, which is beneficial for the overall rapid recovery and stable operation of the system.

[0012] When there is no 5G network failure, normal staggered switching is sufficient. Synchronous switching would cause instantaneous network interruption, resulting in various automatic exits or disturbances, which would have more serious consequences for factory operations.

[0013] S13. Analyze the concentration of faulty sub-units based on their location, time, and type information. If the concentration meets the requirements for 5G network faults and there is no interference, then perform a synchronous switch between the 5G network and the wired network. If the concentration does not meet the requirements for 5G network faults or there is interference, then perform a staggered switch between the 5G network and the wired network to maintain monitoring of sub-units within the factory area.

[0014] Specifically, in step S12, determining whether the distribution of faulty sub-units in the factory area meets the prerequisites for 5G network faults further includes the following steps:

[0015] Set up a starting point and coordinate axes within the factory area, establish a spatial rectangular coordinate system, and obtain the location information of all sub-units;

[0016] Preferably, the location information of all faulty sub-units is obtained, DBSCAN clustering is performed, and the neighborhood radius r and minimum number of points mpt are set.

[0017] Step 1: Select an unvisited faulty sub-unit as the starting point;

[0018] Step 2: Using the selected faulty sub-unit as the center, search for faulty sub-units within a neighborhood radius r;

[0019] Step 3: If the number of faulty sub-units found within the neighborhood radius r is not less than the minimum number of points mpt, the selected point is marked as the core point, and a cluster is formed with this core point; if the number of faulty sub-units found within the neighborhood radius r is less than the minimum number of points mpt, this point is marked as a noise point.

[0020] Step 4: For the core point, add all fault sub-units within the neighborhood radius r centered on the core point to the cluster formed by the core point; for the fault sub-units added to the cluster of the core point, determine whether they are core points according to Step 3. If they are core points, continue to expand the cluster; if they are not core points, do not expand.

[0021] Repeat steps one through four until all faulty sub-units have been visited;

[0022] Obtain the centroid positions of all clusters after DBSCAN clustering, and the maximum distance rm between the centroid and its core point in each cluster; take the centroid of the cluster as the center of the sphere and rm+r as the radius to obtain the spherical model of the cluster; obtain the volume of the area where the spherical model of all clusters overlaps with the plant area, and calculate the spatial dispersion sd of the fault subunit, sd=sq1 / sq2, where sq1 is the volume of the area where the spherical model of all clusters overlaps with the plant area, and sq2 is the total volume of the plant area.

[0023] The minimum number of points (mpt) is used to control the number of faulty sub-units that trigger network switching. Only when the number of faulty sub-units is sufficient can the minimum number of points be achieved within the neighborhood radius of the faulty sub-units.

[0024] Because 5G signals are regional wireless signals, when a 5G network malfunctions, it's unlikely that a single sub-unit will fail; it's usually all sub-units that experience communication failures. Therefore, logically, a malfunction should be identified when a sufficient number of sub-units experience communication failures. However, there are also cases where faulty sub-units are concentrated due to localized interference or other factors. Judging solely by the number of faulty sub-units can easily lead to incorrect results. If faulty sub-units are widely distributed within the network coverage area without a concentrated trend, this indicates that the malfunction is not caused by a localized problem but rather by a systemic 5G network failure, affecting sub-units in different areas simultaneously. This judgment aligns with the general logic of network failures and serves as a prerequisite for identifying 5G network failures.

[0025] Specifically, in step S12, determining whether the distribution of faulty sub-units in the factory area meets the prerequisites for 5G network faults further includes the following steps:

[0026] Historical data on 5G network failures within the factory area are acquired to determine the volume of the affected area. The spatial dispersion of the 5G network failure is then determined based on the affected volume. Based on the spatial dispersion of the faulty sub-units, the probability of a 5G network failure, P{C≥sd}, is calculated, where C represents the spatial dispersion random variable, and P{C≥sd} = n1 / n2. Here, n2 represents the number of historical data points where the spatial dispersion of the faulty sub-units within the factory area is greater than or equal to sd, and n1 represents the number of historical data points where a 5G network failure results in the spatial dispersion of the faulty sub-units within the factory area being greater than or equal to sd. If the probability of a 5G network failure, P{C≥sd}, is greater than a threshold, the prerequisite for a 5G network failure is met; otherwise, the prerequisite is not met.

[0027] Specifically, step S13 further includes the following steps:

[0028] Obtain the time information of all faulty sub-units, arrange the fault times in ascending order, calculate the time difference between the next item and the previous item in the arrangement, and obtain the average value T of all time differences; if the average value T of all time differences is not less than the time threshold, it does not meet the requirement of concentration of 5G network faults; if the average value T of all time differences is less than the time threshold, it meets the requirement of concentration.

[0029] Widely distributed faulty sub-units are not necessarily equivalent to network faults. It could be that multiple sub-units experience independent random faults simultaneously, or that large electromagnetic equipment in the plant area generates strong electromagnetic interference that concentrates on affecting surrounding sub-units, leading to communication failures. Alternatively, there may be a situation where interference and random independent faults coexist. Further analysis should be conducted based on the premise that the preconditions are met.

[0030] 5G network failures usually occur suddenly at a certain moment, and the affected sub-units will experience failures at almost the same time, with strong temporal synchronicity. However, when multiple sub-units experience independent random failures at the same time, although they occur simultaneously, there may be a certain order in time. They only occur in a concentrated period of time and are not absolutely at the same moment.

[0031] Specifically, step S13 further includes the following steps:

[0032] Obtain the fault types of all faulty subunits, sort the fault types by severity and assign labels, with higher severity resulting in larger label values;

[0033] Devices within the factory area that can generate electromagnetic interference are designated as interfering devices, and their location information is obtained. Concentric rings are generated outwards from the interfering devices, with the distance R between the ring edges and the center increasing progressively. The fault type of each fault sub-unit within each ring is obtained, and the average value AL of all fault sub-unit labels within the same ring is calculated, yielding the correspondence between the average label value AL and the distance R. The number of fault sub-units within each ring is obtained, and the proportion POR of each fault sub-unit within the ring is calculated, yielding the correspondence between the proportion POR and the distance R.

[0034] Analyze whether AL and POR decrease with increasing distance R. If so, it indicates the presence of interfering equipment; if not, it indicates a 5G network fault.

[0035] For example, sub-unit fault types include, but are not limited to, increased latency, packet loss, and disconnection, with severity increasing progressively; the assigned tag values ​​also increase progressively; electromagnetic interference generated by electromagnetic equipment within the plant area will concentrate on affecting surrounding sub-units in the space around the electromagnetic equipment, with the degree of impact decreasing as physical distance increases. This impact is not based on the network logical structure, but is only affected by distance in physical space.

[0036] Specifically, the staggered handover between 5G and wired networks includes the following steps:

[0037] There are two networks, A and B. Both networks include a 5G switch and a wired switch. Network A switches from a 5G switch to a wired switch. After a delay time t, network B switches from a 5G switch back to a wired switch.

[0038] The synchronous handover between 5G and wired networks includes the following steps:

[0039] With the delay time t canceled, both networks A and B are simultaneously switched from 5G switches to wired switches.

[0040] Compared with the prior art, the beneficial effects of the present invention are: to analyze the spatial distribution of faulty sub-units as a prerequisite for 5G network fault judgment; to further analyze the concentration and interference of faulty sub-units, reducing the possibility of incorrect judgment of 5G network faults and mitigating the impact on factory operation; and to automatically judge the 5G network status, realize the switching between 5G network and wired network, ensure the security of DCS network, and ensure the stability of production equipment monitoring. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of an industrial internet handover management system based on 5G communication according to the present invention;

[0042] Figure 2 This is the switch switching control diagram of the present invention. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example: Figure 1As shown, this invention provides a technical solution: an industrial internet switching management system based on 5G communication, comprising a network status monitoring module, a network switching module, a network management module, a communication module, and an application module. The network status monitoring module consists of sub-units, each including sensors and a 5G communication module. The sensors acquire on-site data within the plant, and the 5G communication module collects network status information from the sub-units and identifies faulty sub-units. The network switching module switches the plant's network from a 5G network to a wired network. The network management module, based on the network status of the sub-units, generates a synchronization switching signal to the network switching module when a 5G network fault occurs, switching the network from 5G to a wired network synchronously. The communication module enables interoperability between the 5G network and the wired network. The application module provides on-site business applications and displays the network switching results.

[0045] Specifically, the network management module further includes a clustering unit, a coordinate unit, a distribution analysis unit, a time analysis unit, and an interference analysis unit. The clustering analysis unit divides the faulty sub-units into different clusters based on their location information. The coordinate unit is used to establish a spatial rectangular coordinate system within the factory area. The analysis unit is used to analyze the distribution of faulty sub-units within the factory area. The time analysis unit is used to analyze the temporal concentration of faulty sub-units. The interference analysis unit is used to analyze the impact of interference on the 5G network.

[0046] Specifically, the distribution analysis unit determines the probability of 5G failure based on the area ratio occupied by the faulty sub-unit and historical 5G failure data, and judges whether the distribution of the faulty sub-unit meets the prerequisites for 5G network failure.

[0047] Specifically, the network switching module further includes a delay unit and a switching unit. The delay unit is used to set a delay switching time for staggered switching. The switching unit is used to switch the 5G network to a wired network.

[0048] Example: This invention provides a technical solution, an industrial internet handover management method based on 5G communication, comprising the following steps:

[0049] S11, monitor the status of sub-units within the plant area, and obtain the location information, fault time information and fault type information of all faulty sub-units;

[0050] S12, analyze the location information of the faulty sub-unit, and determine whether the distribution of the faulty sub-unit in the factory area meets the prerequisites for 5G network faults. If the prerequisites for 5G network faults are met, proceed to step S13 to analyze the concentration and interference of the faulty sub-units. If the prerequisites for 5G network faults are not met, perform staggered switching between 5G network and wired network to maintain monitoring of sub-units in the factory area and handle the faulty sub-units.

[0051] The process of determining whether the distribution of faulty sub-units in the factory area meets the prerequisites for 5G network faults also includes the following steps:

[0052] Set up a starting point and coordinate axes within the factory area, establish a spatial rectangular coordinate system, and obtain the location information of all sub-units;

[0053] Obtain the location information of all faulty sub-units, perform DBSCAN clustering, and set the neighborhood radius r and the minimum number of points mpt.

[0054] Step 1: Select an unvisited faulty sub-unit as the starting point;

[0055] Step 2: Using the selected faulty sub-unit as the center, search for faulty sub-units within a neighborhood radius r;

[0056] Step 3: If the number of faulty sub-units found within the neighborhood radius r is not less than the minimum number of points mpt, the selected point is marked as the core point, and a cluster is formed with this core point; if the number of faulty sub-units found within the neighborhood radius r is less than the minimum number of points mpt, this point is marked as a noise point.

[0057] Step 4: For the core point, add all fault sub-units within the neighborhood radius r centered on the core point to the cluster formed by the core point; for the fault sub-units added to the cluster of the core point, determine whether they are core points according to Step 3. If they are core points, continue to expand the cluster; if they are not core points, do not expand.

[0058] Repeat steps one through four until all faulty sub-units have been visited;

[0059] Obtain the centroid positions of all clusters after DBSCAN clustering, and the maximum distance rm between the centroid and its core point in each cluster; take the centroid of the cluster as the center of the sphere and rm+r as the radius to obtain the spherical model of the cluster; obtain the volume of the area where the spherical model of all clusters overlaps with the plant area, and calculate the spatial dispersion sd of the fault subunit, sd=sq1 / sq2, where sq1 is the volume of the area where the spherical model of all clusters overlaps with the plant area, and sq2 is the total volume of the plant area.

[0060] In terms of clustering results, the neighborhood radius r and minimum number of points parameters usually need to be tried and adjusted multiple times. Different combinations of neighborhood radius r and minimum number of points can be tried to observe the changes in clustering results. In terms of 5G fault detection, in order to reduce false alarms, the minimum number of points can be increased, and in order to increase the 5G fault detection rate, the minimum number of points can be decreased.

[0061] Historical data on 5G network failures within the factory area are acquired to determine the volume of the affected area. The spatial dispersion of the 5G network failure is then determined based on the affected volume. Based on the spatial dispersion of the faulty sub-units, the probability of a 5G network failure, P{C≥sd}, is calculated, where C represents the spatial dispersion random variable, and P{C≥sd} = n1 / n2. Here, n2 represents the number of historical data points where the spatial dispersion of the faulty sub-units within the factory area is greater than or equal to sd, and n1 represents the number of historical data points where a 5G network failure results in the spatial dispersion of the faulty sub-units within the factory area being greater than or equal to sd. If the probability of a 5G network failure, P{C≥sd}, is greater than a threshold, the prerequisite for a 5G network failure is met; otherwise, the prerequisite is not met.

[0062] In historical data on 5G network failures within the factory area, spatial dispersion can also be determined using the methods described above. If the scope of the 5G network failure's impact is clear, spatial dispersion can be determined directly based on the scope of the impact.

[0063] S13, Analyze the concentration of faulty sub-units based on their location information, fault time information, and fault type information:

[0064] Obtain the time information of all faulty sub-units, arrange the fault times in ascending order, calculate the time difference between the next item and the previous item in the arrangement, and obtain the average value T of all time differences; if the average value T of all time differences is not less than the time threshold, it does not meet the requirement of concentration of 5G network faults; if the average value T of all time differences is less than the time threshold, it meets the requirement of concentration.

[0065] Obtain the fault types of all faulty subunits, sort the fault types by severity and assign labels, with higher severity resulting in larger label values;

[0066] Devices within the factory area that can generate electromagnetic interference are designated as interfering devices, and their location information is obtained. Concentric rings are generated outwards from the interfering devices, with the distance R between the ring edges and the center increasing progressively. The fault type of each fault sub-unit within each ring is obtained, and the average value AL of all fault sub-unit labels within the same ring is calculated, yielding the correspondence between the average label value AL and the distance R. The number of fault sub-units within each ring is obtained, and the proportion POR of each fault sub-unit within the ring is calculated, yielding the correspondence between the proportion POR and the distance R.

[0067] Analyze whether AL and POR decrease with increasing distance R. If so, it indicates the presence of interfering equipment; if not, it indicates a 5G network fault.

[0068] To analyze whether AL and POR change with distance R, the least squares fitting method can be used. This involves taking R as input and AL or POR as output, then calling a least squares function and inputting the data into the fitting function. For example, a jamming device produces five concentric rings (the first ring is spherical), with distances of R1, R2, R3, R4, and R5. Within each ring, the average value of the fault sub-unit labels is obtained to obtain AL1 to AL5. Then, AL1 to AL5 are placed at the input, and R1 to R5 are placed at the output, training the coefficients of the least squares fitting. Based on the coefficients, the functional relationship of AL with respect to R is obtained. Differentiating this functional relationship can determine whether AL decreases as R increases. The same logic applies to POR. This method is not limited to least squares fitting; other fitting functions can also be used. Alternatively, graphical methods can be used to determine whether the overall data shows a downward trend.

[0069] If the centralized system meets the requirements for 5G network faults and there is no interference, then the 5G network and wired network will be switched synchronously. If the centralized system does not meet the requirements for 5G network faults or there is interference, then the 5G network and wired network will be switched at different times to maintain monitoring of the sub-units within the factory area.

[0070] The staggered handover between 5G and wired networks includes the following steps:

[0071] There are two networks, A and B. Both networks include a 5G switch and a wired switch. Network A switches from a 5G switch to a wired switch. After a delay time t, network B switches from a 5G switch back to a wired switch.

[0072] The synchronous handover between 5G and wired networks includes the following steps:

[0073] With the delay time t canceled, both networks A and B are simultaneously switched from 5G switches to wired switches.

[0074] Example: Figure 2 As shown, this invention provides a switch switching control diagram. The switching between the 5G network and the wired network establishes its communication link by controlling the power supply to the switch. First, physical communication connections of four networks are established, with KA1 and KA2 serving as physical connection switches. Then, actual communication is established by controlling the power supply to the switch. When synchronous switching is required, the physical connections between networks A and B and the 5G switch are simultaneously disconnected, and the physical connections between networks A and B and the wired switch are connected. Then, actual communication is established by controlling the power supply to the switch.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for industrial internet handover management based on 5G communication, characterized in that, Includes the following steps: S11, monitor the status of sub-units within the plant area, and obtain the location information, fault time information and fault type information of all faulty sub-units; S12, analyze the location information of the faulty sub-unit, and determine whether the distribution of the faulty sub-unit in the factory area meets the prerequisites for 5G network faults. If the prerequisites for 5G network faults are met, proceed to step S13 to analyze the concentration and interference of the faulty sub-units. If the prerequisites for 5G network faults are not met, perform staggered switching between 5G network and wired network to maintain monitoring of sub-units in the factory area and handle the faulty sub-units. S13. Analyze the concentration of faulty sub-units based on their location, time, and type information. If the concentration meets the requirements for 5G network faults and there is no interference, then perform a synchronous switch between the 5G network and the wired network. If the concentration does not meet the requirements for 5G network faults or there is interference, then perform a staggered switch between the 5G network and the wired network to maintain monitoring of sub-units within the factory area. In step S12, determining whether the distribution of faulty sub-units in the factory area meets the prerequisites for 5G network faults further includes the following steps: Set up a starting point and coordinate axes within the factory area, establish a spatial rectangular coordinate system, and obtain the location information of all sub-units; Obtain the location information of all faulty sub-units, perform DBSCAN clustering, and set the neighborhood radius r and the minimum number of points mpt. Step 1: Select an unvisited faulty sub-unit as the starting point; Step 2: Using the selected faulty sub-unit as the center, search for faulty sub-units within a neighborhood radius r; Step 3: If the number of faulty sub-units found within the neighborhood radius r is not less than the minimum number of points mpt, the selected point is marked as the core point, and a cluster is formed with this core point; if the number of faulty sub-units found within the neighborhood radius r is less than the minimum number of points mpt, this point is marked as a noise point. Step 4: For the core point, add all fault sub-units within the neighborhood radius r centered on the core point to the cluster formed by the core point; for the fault sub-units added to the cluster of the core point, determine whether they are core points according to Step 3. If they are core points, continue to expand the cluster; if they are not core points, do not expand. Repeat steps one through four until all faulty sub-units have been visited; Obtain the centroid positions of all clusters after DBSCAN clustering, and the maximum distance rm between the centroid and its core point in each cluster; take the centroid of the cluster as the center of the sphere and rm+r as the radius to obtain the spherical model of the cluster; obtain the volume of the area where the spherical model of all clusters overlaps with the plant area, and calculate the spatial dispersion sd of the fault subunit, sd=sq1 / sq2, where sq1 is the volume of the area where the spherical model of all clusters overlaps with the plant area, and sq2 is the total volume of the plant area; In step S12, determining whether the distribution of faulty sub-units in the factory area meets the prerequisites for 5G network faults further includes the following steps: Historical data on 5G network failures within the factory area are acquired to determine the volume of the affected area. The spatial dispersion of the 5G network failure is then determined based on the affected volume. The probability P of a 5G network failure is calculated based on the spatial dispersion of the faulty sub-units, with the probability condition being C ≥ sd. Here, C represents the spatial dispersion random variable, and P = n1 / n2, where n2 represents the number of historical data points where the spatial dispersion of the faulty sub-units within the factory area is greater than or equal to sd, and n1 represents the number of historical data points where a 5G network failure results in the spatial dispersion of the faulty sub-units within the factory area being greater than or equal to sd. If the probability P of a 5G network failure is greater than a threshold, the prerequisite for a 5G network failure is met; otherwise, the prerequisite is not met.

2. The industrial internet handover management method based on 5G communication according to claim 1, characterized in that, Step S13 also includes the following steps: Obtain the time information of all faulty sub-units, arrange the fault times in ascending order, calculate the time difference between the next item and the previous item in the arrangement, and obtain the average value T of all time differences; if the average value T of all time differences is not less than the time threshold, it does not meet the requirement of concentration of 5G network faults; if the average value T of all time differences is less than the time threshold, it meets the requirement of concentration.

3. The industrial internet handover management method based on 5G communication according to claim 2, characterized in that, Step S13 also includes the following steps: Obtain the fault types of all faulty subunits, sort the fault types by severity and assign labels, with higher severity resulting in larger label values; Devices within the factory area that can generate electromagnetic interference are designated as interfering devices, and their location information is obtained. Concentric rings are generated outwards from the interfering devices, with the distance R between the ring edges and the center increasing progressively. The fault type of each fault sub-unit within each ring is obtained, and the average value AL of all fault sub-unit labels within the same ring is calculated, yielding the correspondence between the average label value AL and the distance R. The number of fault sub-units within each ring is obtained, and the proportion POR of each fault sub-unit within the ring is calculated, yielding the correspondence between the proportion POR and the distance R. Analyze whether AL and POR decrease with increasing distance R. If so, it indicates the presence of interfering equipment; if not, it indicates a 5G network fault.

4. The industrial internet handover management method based on 5G communication according to claim 3, characterized in that, The staggered handover between 5G and wired networks includes the following steps: There are two networks, A and B. Both networks include a 5G switch and a wired switch. Network A switches from a 5G switch to a wired switch. After a delay time t, network B switches from a 5G switch back to a wired switch. The synchronous handover between 5G and wired networks includes the following steps: With the delay time t canceled, both networks A and B are simultaneously switched from 5G switches to wired switches.

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